Category: 5444-75-7

In Vitro Tracking of Intracellular Metabolism-Derived Cancer Volatiles via Isotope Labeling was written by Lee, Dong-Kyu;Na, Euiyeon;Park, Seongoh;Park, Jeong Hill;Lim, Johan;Kwon, Sung Won. And the article was included in ACS Central Science in 2018.Synthetic Route of C15H22O2 The following contents are mentioned in the article:

Cancer detection relying on the release of volatile biomarkers has been extensively studied, but the individual biochem. processes of the cells from which biogenic volatiles originate have not been thoroughly elucidated to date. Inadequate determination of the metabolic origin of the volatile biomarkers has limited the progress of the scientific and practical applications of volatile biomarkers. To overcome the current limitations, the authors developed a metabolism tracking approach combining stable isotope labeling and flux anal. of volatiles to trace the intracellular metabolism-derived volatiles and to reveal their relation to cancer metabolic pathways. Specifically, after the ¹³C labeling of lung cancer cell, the isotopic ratio of whole cellular carbon was measured by nanoscale secondary ion mass spectrometry-based imaging. The kinetic modeling with the time-dependent isotopic ratio determined the period during which cancer cells reach the metabolic steady state, at which time all of the potential volatiles derived from intracellular metabolism were fully enriched isotopically. By measuring the isotopic enrichment of volatiles at the end-stage of isotopic flux, 2-pentadecanone appeared to be derived from the metabolic cascade starting from glucose to fatty acid synthesis. Furthermore, this biosynthetic pathway is distinct in cancer, as it was upregulated in colon, breast, and pancreatic cancer cells but not in normal cells. The study of the metabolic footprint of 2-pentadecanone demonstrates that the authors’ novel approach could be applied to trace the metabolic origin of biogenic volatile organic compounds This anal. strategy represents a potential cutting-edge tool in elucidating the biochem. authenticity of cancer volatiles and further expanding the authors’ understanding of the metabolic network of airborne metabolites in vitro. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Synthetic Route of C15H22O2).

2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Synthetic Route of C15H22O2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Tile-Based Pairwise Analysis of GC x GC-TOFMS Data to Facilitate Analyte Discovery and Mass Spectrum Purification was written by Cain, Caitlin N.;Trinklein, Timothy J.;Ochoa, Grant S.;Synovec, Robert E.. And the article was included in Analytical Chemistry (Washington, DC, United States) in 2022.Application of 5444-75-7 The following contents are mentioned in the article:

A new tile-based pairwise anal. workflow, termed 1v1 anal., is presented to discover and identify analytes that differentiate two chromatograms collected using comprehensive two-dimensional (2D) gas chromatog. coupled with time-of-flight mass spectrometry (GC x GC-TOFMS). Tile-based 1v1 anal. easily discovered all 18 non-native analytes spiked in diesel fuel within the top 30 hits, outperforming standard pairwise chromatog. analyses. However, eight spiked analytes could not be identified with multivariate curve resolution-alternating least-squares (MCR-ALS) nor parallel factor anal. (PARAFAC) due to background contamination. Analyte identification was achieved with class comparison enabled-mass spectrum purification (CCE-MSP), which obtains a pure analyte spectrum by normalizing the spectra to an interferent mass channel (m/z) identified from 1v1 anal. and subtracting the two spectra. This report also details the development of CCE-MSP assisted MCR-ALS, which removes the identified interferent m/z from the data prior to decomposition In total, 17 out of 18 spiked analytes had a match value (MV) > 800 with both versions of CCE-MSP. For example, MCR-ALS and PARAFAC were unable to decompose the pure spectrum of Me decanoate (MVs < 200) due to its low 2D chromatog. resolution (~0.34) and high interferent-to-analyte signal ratio (~30:1). By leveraging information gained from 1v1 anal., CCE-MSP and CCE-MSP assisted MCR-ALS obtained a pure spectrum with an average MV of 908 and 964, resp. Furthermore, tile-based 1v1 anal. was applied to track moisture damage in cacao beans, where 86 analytes with at least a 2-fold concentration change were discovered between the unmolded and molded samples. This 1v1 anal. workflow is beneficial for studies where multiple replicates are either unavailable or undesirable to save anal. time. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Application of 5444-75-7).

2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Esters contain a carbonyl center, which gives rise to 120掳 C鈥揅鈥揙 and O鈥揅鈥揙 angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C鈥揙鈥揅 bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Application of 5444-75-7

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Modeling of Viscosities in Extended Pressure Range Using SAFT + Cubic EoS and Modified Yarranton-Satyro Correlation was written by Polishuk, Ilya. And the article was included in Industrial & Engineering Chemistry Research in 2012.HPLC of Formula: 5444-75-7 The following contents are mentioned in the article:

The current study is a step toward developing an approach with improved extrapolation capability and predictive potential in modeling viscosities. A modified Yarranton-Satyro correlation that relates viscosities to densities was coupled with SAFT + Cubic EoS. Having three adjustable parameters, the proposed method allows nearly precise extrapolations of the light gases viscosities to the extreme pressure conditions (up to 鈭? GPa) in wide temperature range. The predictive potential of the proposed method is remarkable as well. For example, using the parameters fitted to the data of carbon dioxide, it allows robust prediction of the elevated pressure viscosities of halocarbons such as R-134a and hexafluorobenzene. In addition, relying on the exptl. viscosity of just a single n-alkane, it usually yields reliable estimations of the data of not only n-alkane series but also heavy organic compounds, such as 2,6,10,15,19,23-hexamethyltetracosane, bis(2-ethylhexyl) phthalate, diisodecyl phthalate, and 2-ethylhexyl benzoate in a vast range of values (from single mPa路s to thousands of mPa路s). It was demonstrated that using a single set of parameters, the proposed approach can generate accurate predictions of viscosities in a wide pressure range for ionic liquids belonging to similar families, such as [C_xmim][PF₆] and [C_xmim][BF₄]. Densities of 1-hexyl-3-methylimidazolium hexafluorophosphate ([C6MIM][PF6]), 1-butyl-3-methylimidazolium tetrafluoroborate ([C4MIM][BF4]), and 1-methyl-3-octylimidazolium tetrafluoroborate ([C8MIM][BF4]). Exptl. data,69-71 points. Calculateddata: SAFT + Cubic, solid lines. Viscosities of 1-butyl-3-methylimidazolium hexafluorophosphate ([C4MIM][PF6]), 1-hexyl-3-methylimidazolium hexauorophosphate ([C6MIM][PF6]), and 1-methyl-3-octylimidazolium hexafluorophosphate ([C8MIM][PF6]). Exptl. data,71-73 points.Predicted data: YS, solid lines. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7HPLC of Formula: 5444-75-7).

2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.HPLC of Formula: 5444-75-7

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Deodorizing effects of rosemary extract on silver carp (Hypophthalmichthys molitrix) and determination of its deodorizing components was written by Huang, Pimiao;Wang, Zhirong;Shi, Yue;Zhang, Rui;Feng, Xiya;Kan, Jianquan. And the article was included in Journal of Food Science in 2022.Formula: C15H22O2 The following contents are mentioned in the article:

Fishy odor in fish products severely influences both eating quality and com. acceptability, and natural plant extracts, particularly spices, have recently become popular for the removal of fishy odor. This study aimed to explore the potential of rosemary extract for the deodorization of silver carp (Hypophthalmichthys molitrix), as well as to identify the deodorizing components in rosemary extract Results showed that all of the spice extracts used in this study (ginger, garlic, angelica dahurica, fennel, rosemary, nutmeg, white cardamom, cinnamon, star anise, and bay leaf) significantly reduced the fishy odor value of silver carp, among which rosemary extract was most effective, decreasing the fishy odor value by about 58%. Gas chromatog.-mass spectrometry anal. and sensory evaluation showed that the fishy odor value and concentrations of the fishy odor-active compounds were significantly reduced by the application of rosemary extract However, the lower the total phenolic content of rosemary extract, the poorer the deodorizing effects against silver carp, suggesting that the deodorizing effect was primarily driven by polyphenols. Fourteen phenolic compounds were measured in rosemary extract, and three individual phenolic compounds (rosmarinic acid [RA], carnosic acid [CA], and carnosol [CS]) were chosen for deodorizing experiment Sensory detection results and changes of contents of volatile showed that these three phenolic compounds are effective at removing the fishy odor. These results suggest that polyphenols are the main deodorizing components, and RA, CA, and CS are the main deodorizing active compounds in rosemary extract Practical Application : The results of this study may provide a new way to determine the deodorizing components of spice extracts Moreover, it can provide guidance for further research in investigating the deodorizing mechanism of sipce extracts This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Formula: C15H22O2).

2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is 纬-valerolactone.Formula: C15H22O2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Study of bioactivities of lipid content of fresh Lagenaria siceraria seeds pulp and identification of its chemical constituents was written by Chaudhery, Raza;Ahmed, Dildar;Liaqat, Inam;Dar, Parsa;Shaban, Muhammad. And the article was included in Journal of Medicinal Plants Research in 2014.Formula: C15H22O2 The following contents are mentioned in the article:

The aim of the present work was to analyze antimicrobial activities of the lipid content of seeds pulp of the fresh fruit of Lagenaria siceraria and identification of its chem. constituents by gas chromatog.-mass spectrometry (GC-MS). Methanolic extract of the seeds pulp exhibited moderate to good efficacy against Achromobacter xylosoxidans, Pseudomonas aeruginosa, Bacillus megaterium and Escherichia coli having zone of inhibition (ZOI) 21.5, 20.0, 17.5 and 15.0 mm, resp., at concentration 100 mg/mL. It showed better potency than antibiotic amoxylin against Enterobacter aerogenes, P. aeruginosa and Bacillus megaterium. The hexane fraction, that contained most of the lipid content, exhibited highest lethality against all the test microorganisms with ZOI 16.0 to 30.0 mm. It displayed highly significant efficacy against B. megaterium and Salmonella typhi with ZOI 30.0 and 22.5 mm, resp. Min. inhibitory concentration (MIC) of hexane fraction against B. megaterium and A. xylosoxidans was 0.40 mg/mL, while for others it ranged from 0.80 to 2.80 mg/mL. Palmitic acid exhibited significant potency against Staphylococcus aureus (ZOI, 20.0 mm, at concentration of 40 mg/mL), and moderately good efficacy against Stenotrophomonas maltophilia, Salmonella typhi and Enterobacter cloacae. Most compounds identified in the seeds pulp through GC-MS anal. were fatty acids or their esters. The compounds present in considerable concentration included azelaic acid (31.0%), (Z,Z)-9,12-octadecadienoic acid Me ester (27.75%), and palmitic acid Me ester (13.0%). Major component of Et acetate fraction was 4-hydroxybenzenemethanol (19.28%), while chloroform fraction contained 4-methoxymethylphenol (6.42%) and pentanoic acid 2-hydroxy-4-methyl-Me ester (6.75%) as major constituents. The lipid content of seeds pulp of Lagenaria siceraria fruit contains components which are capable to inhibit bacterial growth, and the ones with strong anti-oxidative potential. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Formula: C15H22O2).

2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Formula: C15H22O2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Bioactive Compounds in Aegopodium podagraria Leaf Extracts and Their Effects against Fluoride-Modulated Oxidative Stress in the THP-1 Cell Line was written by Jakubczyk, Karolina;Lukomska, Agnieszka;Czaplicki, Sylwester;Wajs-Bonikowska, Anna;Gutowska, Izabela;Czapla, Norbert;Tanska, Malgorzata;Janda-Milczarek, Katarzyna. And the article was included in Pharmaceuticals in 2021.Electric Literature of C15H22O2 The following contents are mentioned in the article:

Aegopodium podagraria L. (goutweed), a member of the Apiaceae family, is a common perennial plant found all around the world that has been used in folk medicine since antiquity. Goutweed leaves contain polyacetylenes, essential oils, mono- and sesquiterpenes, vitamins, macro- and microelements, and phenolic compounds In spite of its many health-promoting properties, including antioxidant effects, the plant has not been thoroughly studied. The aim of this study was to investigate the antioxidant properties of different goutweed leaf extracts and their effects on the THP-1 cell line, and also to describe the chem. characteristics of goutweed. Falcarinol and falcarindiol and essential oil were determined by gas chromatog. coupled with mass spectrometry. Spectrophotometry was used to measure the total content of polyphenols and antioxidant activity-by DPPH and FRAP methods. Oxidative stress in THP-1 cells was induced via sodium fluoride. Then, goutweed leaf extracts were added to evaluate their influence on antioxidant potential (ABTS) and the activity of antioxidant enzymes. Confocal microscopy was used to visualise the production of cytoplasmic and mitochondrial reactive oxygen species (ROS) and for in vitro imaging of apoptosis. The ethanol extracts have a high total content of polyphenols, polyacetylenes, and essential oil, as well as high antioxidant potential. The main volatiles represented diverse chem. groups, which are both oxygenated derivatives of sesquiterpenes and monoterpenes. We also demonstrated pos. effects of the high antioxidant potential and increased activity of antioxidant enzymes on cell cultures under severe fluoride-induced oxidative stress. Extraction at 80 掳C and the use of ethanol as a solvent increased the antioxidant capacity of the extract The leaves of Aegopodium podagraria may serve as a valuable source of antioxidants in the daily diet and assist in the prevention and treatment of oxidative stress-mediated conditions, e.g., inflammatory conditions, cardiovascular diseases, neurodegenerative diseases, and even obesity. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Electric Literature of C15H22O2).

2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Electric Literature of C15H22O2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

A technique for rapid source apportionment applied to ambient organic aerosol measurements from a thermal desorption aerosol gas chromatograph (TAG) was written by Zhang, Yaping;Williams, Brent J.;Goldstein, Allen H.;Docherty, Kenneth S.;Jimenez, Jose L.. And the article was included in Atmospheric Measurement Techniques in 2016.Electric Literature of C15H22O2 The following contents are mentioned in the article:

We present a rapid method for apportioning the sources of atm. organic aerosol composition measured by gas chromatog.-mass spectrometry methods. Here, we specifically apply this new anal. method to data acquired on a thermal desorption aerosol gas chromatograph (TAG) system. Gas chromatograms are divided by retention time into evenly spaced bins, within which the mass spectra are summed. A previous chromatogram binning method was introduced for the purpose of chromatogram structure deconvolution (e.g., major compound classes). Here we extend the method development for the specific purpose of determining aerosol samples’ sources. Chromatogram bins are arranged into an input data matrix for pos. matrix factorization (PMF), where the sample number is the row dimension and the mass-spectra-resolved eluting time intervals (bins) are the column dimension. Then two-dimensional PMF can effectively do three-dimensional factorization on the three-dimensional TAG mass spectra data. The retention time shift of the chromatogram is corrected by applying the median values of the different peaks’ shifts. Bin width affects chem. resolution but does not affect PMF retrieval of the sources’ time variations for low-factor solutions A bin width smaller than the maximum retention shift among all samples requires retention time shift correction. A six-factor PMF comparison among aerosol mass spectrometry (AMS), TAG binning, and conventional TAG compound integration methods shows that the TAG binning method performs similarly to the integration method. However, the new binning method incorporates the entirety of the data set and requires significantly less pre-processing of the data than conventional single compound identification and integration. In addition, while a fraction of the most oxygenated aerosol does not elute through an underivatized TAG anal., the TAG binning method does have the ability to achieve mol. level resolution on other bulk aerosol components commonly observed by the AMS. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Electric Literature of C15H22O2).

2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Electric Literature of C15H22O2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Solid phase microextraction coupled with comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry for high-resolution metabolite profiling in apples: Implementation of structured separations for optimization of sample preparation procedure in complex samples was written by Risticevic, Sanja;DeEll, Jennifer R.;Pawliszyn, Janusz. And the article was included in Journal of Chromatography A in 2012.Related Products of 5444-75-7 The following contents are mentioned in the article:

Metabolomics currently represents one of the fastest growing high-throughput mol. anal. platforms that refer to the simultaneous and unbiased anal. of metabolite pools constituting a particular biol. system under investigation. In response to the ever increasing interest in development of reliable methods competent with obtaining a complete and accurate metabolomic snapshot for subsequent identification, quantification and profiling studies, the purpose of the current investigation is to test the feasibility of solid phase microextraction for advanced fingerprinting of volatile and semivolatile metabolites in complex samples. In particular, the current study is focussed on the development and optimization of solid phase microextraction (SPME) – comprehensive two-dimensional gas chromatog.-time-of-flight mass spectrometry (GC 脳 GC-ToFMS) methodol. for metabolite profiling of apples (Malus 脳domestica Borkh.). For the first time, GC 脳 GC attributes in terms of mol. structure-retention relationships and utilization of two-dimensional separation space on orthogonal GC 脳 GC setup were exploited in the field of SPME method optimization for complex sample anal. Anal. performance data were assessed in terms of method precision when com. coatings are employed in spiked metabolite aqueous sample anal. The optimized method consisted of the implementation of direct immersion SPME (DI-SPME) extraction mode and its application to metabolite profiling of apples, and resulted in a tentative identification of 399 metabolites and the composition of a metabolite database far more comprehensive than those obtainable with classical one-dimensional GC approaches. Considering that specific metabolome constituents were for the first time reported in the current study, a valuable approach for future advanced fingerprinting studies in the field of fruit biol. is proposed. The current study also intensifies the understanding of SPME-GC 脳 GC-ToFMS hyphenation and outlines the benefits of facilitating GC 脳 GC for SPME method optimization. The obtained results clearly illustrate that acquisition of a more complete metabolome snapshot is only attainable under optimized conditions for both techniques. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Related Products of 5444-75-7).

2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Related Products of 5444-75-7

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

A non-invasive method for in vivo skin volatile compounds sampling was written by Jiang, Ruifen;Cudjoe, Erasmus;Bojko, Barbara;Abaffy, Tatjana;Pawliszyn, Janusz. And the article was included in Analytica Chimica Acta in 2013.Recommanded Product: 2-Ethylhexyl benzoate The following contents are mentioned in the article:

The use of volatile organic compounds (VOCs) emanating from human skin presents great potential for skin disease diagnosis. These compounds are emitted at very low concentrations Thus, the sampling preparation step needs to be implemented before gas chromatog.-mass spectrometry (GC-MS) anal. In this work, a simple, non-invasive headspace sampling method for volatile compounds emanating from human skin is presented, using thin film as the extraction phase format. The proposed method was evaluated in terms of reproducibility, membrane size, extraction mode and storage conditions. First, the in vial sampling showed an intra- and inter-membrane RSD% less than 9.8% and 8.2%, resp., which demonstrated that this home-made skin volatiles sampling device was highly reproducible with regard to intra-, inter-membrane sampling. The in vivo sampling was influenced not only by the skin metabolic status, but also by environmental conditions. The developed sampling set-up (or “membrane sandwich”) was used to compare two different modes of sampling: headspace and direct sampling. Results demonstrated that headspace sampling had significantly reduced background signal intensity, indicating minimized contamination from the skin surface. In addition, membrane storage conditions both before and after sampling were fully investigated. Membranes stored in dry ice for up to 72 h after collection were tested and showed no or minimal change in volatile profiles. This novel skin volatile compounds sampling approach coupled with gas chromatog.-mass spectrometry (GC-MS) can achieve reproducible anal. This technique was applied to identify the biomarkers of garlic intake and alc. ingestion. Di-Me sulfone, allyl Me sulfide and allyl mercaptan, as metabolites of garlic intake, were detected. In addition, alc. released from skin was also detected using our “membrane-sandwich” sampling. Using the same approach, we analyzed skin VOCs from upper back, forearm and back thigh regions of the body. Our results show that different body locations share a number of common compounds (27/99). The area with most compounds detected was the upper back skin region, where the d. of sebaceous glands is the highest. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Recommanded Product: 2-Ethylhexyl benzoate).

2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Esters contain a carbonyl center, which gives rise to 120掳 C鈥揅鈥揙 and O鈥揅鈥揙 angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C鈥揙鈥揅 bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Recommanded Product: 2-Ethylhexyl benzoate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Characterization of the volatile profile of Brazilian Merlot wines through comprehensive two dimensional gas chromatography time-of-flight mass spectrometric detection was written by Welke, Juliane Elisa;Manfroi, Vitor;Zanus, Mauro;Lazarotto, Marcelo;Alcaraz Zini, Claudia. And the article was included in Journal of Chromatography A in 2012.COA of Formula: C15H22O2 The following contents are mentioned in the article:

Wine aroma is an important characteristic and may be related to certain specific parameters, such as raw material and production process. The complexity of Merlot wine aroma was considered suitable for comprehensive two-dimensional gas chromatog. (GC 脳 GC), as this technique offers superior performance when compared to one-dimensional gas chromatog. (1D-GC). The profile of volatile compounds of Merlot wine was, for the first time, qual. analyzed by HS-SPME-GC 脳 GC with a time-of-flight mass spectrometric detector (TOFMS), resulting in 179 compounds tentatively identified by comparison of exptl. GC 脳 GC retention indexes and mass spectra with literature 1D-GC data and 155 compounds tentatively identified only by mass spectra comparison. A set of GC 脳 GC exptl. retention indexes was also, for the first time, presented for a specific inverse set of columns. Esters were present in higher number (94), followed by alcs. (80), ketones (29), acids (29), aldehydes (23), terpenes (23), lactones (16), furans (14), sulfur compounds (9), phenols (7), pyrroles (5), C13-norisoprenoids (3), and pyrans (2). GC 脳 GC/TOFMS parameters were improved and optimal conditions were: a polar (polyethylene glycol)/medium polar (50% Ph 50% di-Me arylene siloxane) column set, oven temperature offset of 10 掳C, 7 s as modulation period and 1.4 s of hot pulse duration. Co-elutions came up to 138 compounds in ¹D and some of them were resolved in ²D. Among the co-eluted compounds, thirty-three volatiles co-eluted in both ¹D and ²D and their tentative identification was possible only due to spectral deconvolution. Some compounds that might have important contribution to aroma notes were included in these superimposed peaks. Structurally organized distribution of compounds in the 2D space was observed for esters, aldehydes and ketones, alcs., thiols, lactones, acids and also inside subgroups, as occurred with esters and alcs. The Fischer Ratio was useful for establishing the analytes responsible for the main differences between Merlot and non-Merlot wines. Differentiation among Merlot wines and wines of other grape varieties were mainly perceived through the following components: Et dodecanoate, 1-hexanol, Et nonanoate, Et hexanoate, Et decanoate, dehydro-2-methyl-3(2H)thiophenone, 3-Me butanoic acid, Et tetradecanoate, Me octanoate, 1,4 butanediol, and 6-methyloctan-1-ol. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7COA of Formula: C15H22O2).

2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.COA of Formula: C15H22O2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics