Category: 5444-75-7

Characterization of odors of wood by gas chromatography-olfactometry with removal of extractives as attempt to control indoor air quality was written by Liu, Ru;Wang, Chen;Huang, Anmin;Lv, Bin. And the article was included in Molecules in 2018.COA of Formula: C15H22O2 The following contents are mentioned in the article:

Indoor air quality problems are usually revealed by occupants′ complaints. In this study, the odors of two types of hardwood species, namely, Cathy poplar (Populus cathayana Rehd.) and rubberwood (Hevea brasiliensis) were selected and extracted with ethanol-toluene for removal of extractives in an attempt to eliminate the odors. The odorous components of neat and extracted woods were identified by gas chromatog.-mass spectrometry/olfactometry (GC-MS/O). The results showed that about 33 kinds of key volatile compounds (peak area above 0.2%) were detected from the GC-MS, and about 40 kinds of odorants were identified from GC-O. The components were concentrated between 15 and 33 min in GC-O, which was different from the concentration time in GC-MS. Lots of the odors identified from GC-O were unpleasant to humans, and variously described as stinky, burnt, leather, bug, herb, etc. These odors may originate from the thermos-oxidation of wood components. After extraction, the amounts and intensities of some odorants decreased, while some remained. However, the extraction process resulted in a benzene residue and led to increased benzene odor. 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. 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.COA of Formula: C15H22O2

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

Comparison of volatile compounds released by entomopathogenic fungi was written by Bojke, Aleksandra;Tkaczuk, Cezary;Stepnowski, Piotr;Golebiowski, Marek. And the article was included in Microbiological Research in 2018.Formula: C15H22O2 The following contents are mentioned in the article:

Entomopathogenic fungi are fungal species which are used as a potential source of biopesticides. These fungi produce secondary metabolites which in insects can cause disruption in the normal functioning of their bodies, disease or even death. In order to fully characterize the physiol. of entomopathogenic fungi we should identify the volatile organic compounds which are involved in this process. Therefore, we conducted a qual. and quant. anal. of volatile compounds produced by entomopathogenic fungi. Seven different species of fungi were analyzed: Metarhizium anisopliae, Metarhizium flavoviride, Pandora sp., Isaria fumosorosea, Hirsutella danubiensis, Batkoa sp. and Beauveria bassiana. The analyses were performed using the HS-SPME/GC-MS technique. In the analyzed fungi, 63 volatile compounds were identified and classified into the following groups: aldehydes, ketones, alcs., esters, acids, terpenes and others. The results show that entomopathogenic fungi produce a wide profile of secondary metabolites. Principal Components Anal. was used to determine whether sep. classes of fungi can be distinguished from one another based on their metabolite profiles. 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. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Formula: C15H22O2

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

Use of simultaneous distillation-extraction, supercritical fluid extraction and solid-phase microextraction for characterisation of the volatile profile of Dipteryx odorata (Aubl.) Willd. was written by Bajer, Tomas;Surmova, Silvie;Eisner, Ales;Ventura, Karel;Bajerova, Petra. And the article was included in Industrial Crops and Products in 2018.Safety of 2-Ethylhexyl benzoate The following contents are mentioned in the article:

Head-space solid phase microextraction (HS-SPME), simultaneous distillation-extraction (SDE) and supercritical fluid extraction (SFE) were employed to prepare volatile extracts of tonka beans (Dipteryx odorata). A total of 190 compounds were assigned by gas chromatog./mass spectrometry (GC/MS) together in comparison with retention indexes. These included 156 (HS-SPME), 77 (SDE) and 36 (SFE) compounds (alcs., carbonyl compounds, acids, esters, terpenes, terpenoids, lactones, aliphatic and aromatic hydrocarbons, and other non-categorised compounds). Semiquant. evaluation of individual compounds was performed using gas chromatog. coupled with a flame ionisation detector. The main constituent detected in all extracts was coumarin (51-85%, despite the extraction method) belonging to the group of lactones. A comparison was made among the three methods in terms of volatile profiles, categorisation of compounds and representation of individual groups of compounds Extracts prepared by HS-SPME were rich in alcs., carbonyls and acids than other extracts Results can provide essential information for the application of different treatment of tonka beans in flavor industries. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Safety of 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 are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Safety of 2-Ethylhexyl benzoate

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

Antitumor mechanism of the essential oils from two succulent plants in multidrug resistance leukemia cell was written by Poma, Paola;Labbozzetta, Manuela;Mccubrey, James A.;Ramarosandratana, Aro Vonjy;Sajeva, Maurizio;Zito, Pietro;Notarbartolo, Monica. And the article was included in Pharmaceuticals in 2019.Synthetic Route of C15H22O2 The following contents are mentioned in the article:

Drug resistance remains a major challenge in the treatment of cancer. The multiplicity of the drug resistance determinants raises the question about the optimal strategies to deal with them. Essential oils showed to inhibit the growth of different tumor cell types. Essential oils contain several chem. classes of compounds whose heterogeneity of active moieties can help prevent the development of drug resistance. In the present paper, we analyzed, by gas chromatog.-mass spectrometry the chem. composition of the essential oil of the leaves of Kalanchoe beharensis obtained by hydrodistillation and compared the chem. composition of its essential oil with that of Cyphostemma juttae. Our results demonstrated the anticancer and proapoptotic activities of both species against acute myeloid leukemia on an in vitro model and its multidrug resistant variant involving NF-κB pathway. The essential oils of both species produced a significant decrease in many targets of NF-κB both at mRNA and protein levels. The results corroborate the idea that essential oils may be a good alternative to traditional drugs in the treatment of cancer, especially in drug resistant cancer. 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. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. 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

Evaluation of volatile compounds released during ceramic material sintering produced from industrial waste by TGA/DTG and PY-GC/MS was written by Souza de Caux, Leonardo;Guimaraes, Cleide Castro Justino;Dalvi, Leandro Coelho. And the article was included in Papel in 2013.Formula: C15H22O2 The following contents are mentioned in the article:

The generation of waste occurs due to the growth of industrial activities, causing in a long-term the depletion of natural sources. The kraft pulp industry has a water demand associated to its process, which involves the generation of a residue derived from water treatment plants. The feasibility of using these wastes in red ceramic production has been demonstrated in the literature and in previous works. However, the sintering process of these materials leads to heating the material at a min. temperature of 800°C and also to atm. emissions from gases release. In order to verify if the reuse of this waste could compromise the environment due to the gases released during its processing in the ceramic industry, the volatile compounds from its heat were evaluated. The compounds were analyzed by pyrolysis gas chromatog.-mass spectrometry. The results from a sample of the residue were compared with results obtained by the same technique from a sample of com. clay. The results showed the same classes of compounds released during heating in both samples, leading to the conclusion that the use of this residue does not compromise the pottery operation concerning the atm. emissions. 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 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. 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

Dynamics of polymers in concentrated solutions: A weaker self-concentration effect was written by Yan, Zhi-Chao;Wang, Wei. And the article was included in Polymer in 2018.Recommanded Product: 5444-75-7 The following contents are mentioned in the article:

We examine the validity of the Lodge-McLeish (LM) self-concentration model on polymer dynamics in concentrated polymer/small mol. solutions Three solutions, 1,2-polybutadiene/2-ethylhexyl benzoate, 1,4-polyisoprene/phenyloctane, and polystyrene/2-ethylhexyl benzoate, are investigated by rheol. technique. The temperature dependence of their normalized terminal relaxation times is fitted by the WLF equation to extract the effective glass transition temperature The calculated self-concentration is found lower than the LM prediction, in contrast with the significant values in miscible polymer blends. According to the mol. dynamic simulation, this weak self-concentration effect is explained by the overestimation of the polymer’s interchain concentration, which is postulated as the global average concentration in the original LM model. The lower interchain concentration in solutions is attributed to the higher probabilities for small mols. to fill the cooperative volume Both exptl. and simulation results may motivate the further theor. modification on the interchain concentration in order to establish a self-consistent model predicting both miscible blends and polymer solutions This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Recommanded Product: 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. 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.Recommanded Product: 5444-75-7

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

A designed experiment approach to optimizing the performance of benzoate and phthalate blends in flexible vinyl was written by Strepka, Arron M.;Arendt, William D.;Joshi, Makarand. And the article was included in Annual Technical Conference – Society of Plastics Engineers in 2007.Related Products of 5444-75-7 The following contents are mentioned in the article:

Plasticizer blends are commonly utilized to develop the desired processing and performance properties in flexible vinyl. To increase processing speeds, high solvating phthalates are typically included in these blends. Benzoate esters are high solvating plasticizers that can also be utilized for this purpose. However, the benzoate esters are not drop-in replacements for phthalates and other properties can be affected. An example of this is the increased viscosity commonly experienced in plastisols. The purpose of this paper is to demonstrate the use of designed experiment software to optimize the composition of general purpose and high solvating benzoate plasticizer blends to obtain all desired properties. A resilient flooring plastisol formulation was selected as the model. The following properties were measured on the plastisol: degassing, plastisol viscosity over a range of shear rates, viscosity stability of the plastisol and gelation/fusion characteristics. Stain resistance and tensile properties were evaluated on the fused vinyl film. The data will demonstrate the use of DOE software to develop an optimized plasticizer package that will deliver the desired balance of properties in an efficient and timely manner. 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 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. 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.Related Products of 5444-75-7

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

Aroma compounds in Chrysanthemum in different florescence and inflorescence parts and aroma releasing was written by Xu, Jin;Li, Yingying;Zheng, Chengshu;Wang, Chao;Yoo, Yongkweon. And the article was included in Xibei Zhiwu Xuebao in 2012.Application of 5444-75-7 The following contents are mentioned in the article:

Aroma components in ‘Jinba’ in different florescence and inflorescence parts were analyzed by Head Solid-phase Micro-extraction and GC/MS technol. The basic structure of the petal cell and the cross-section was observed by the biol. microscope. The results showed that there were 24 components identified at bud stage, 31 at early opening stage, 43 at full opening stage and 22 at declining period. With the flower blooming and senescence, the contents of ketones, terpenes and alcs. raised to the highest at full opening stage, and the contents of alkanes, aldehydes and heterocycles decreased. At full opening stage, there were 31 components identified in the ligulate flower and 50 in the tubular flower. The ligulate flower was probably the most important part that could influence the volatile releasing. The categories of the main aromatic components of ligulate flower in different parts were not change, but their contents were decreased from inner part to outer part. Isocyclocitral, eucalyptol, α-pinene, β-farnesene, and caryophyllene were the characteristic constituents of aroma. The results of microscopic observation showed that aroma was probably emitted from the intercellular space and the adaxial epidermis was the main releasing part. 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 typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Application of 5444-75-7

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

Study on titanates catalysts supported on silica gel and their application to esterification reaction was written by Wang, Xiaoling;Xu, Jiaye;Yang, Xueting. And the article was included in Xi’an Shiyou Daxue Xuebao, Ziran Kexueban in 2008.Category: esters-buliding-blocks The following contents are mentioned in the article:

The solid supporting catalysts-silica supporting titanates are synthesized by the reactions of titanium tetrachloride firstly with 2- ethylhexanol of different mole ratios and then with silica gel. The reaction conditions are optimized by orthogonal experiments The results show that the preferable conditions are as follows: the titanium tetrachloride to 2-ethylhexanol mole ratio of 1:3; the reaction temperature of 120°; the reaction time of 2 h; and the theoretic solid supporting rate of 20%. The content of titanium in the solid supporting titanate is measured, and the silica supporting catalysts are characterized by IR spectroscopy. The solid supporting catalysts of different amount are applied to the esterification reaction of benzoic acid with 2-ethylhexanol, and the catalysis effect of them is compared with that of titanate. It is found that the the activity of solid supporting catalysts is worse than that of titanate, but among the solid supporting catalysts, the solid supporting catalyst prepared by the titanium tetrachloride to 2-ethylhexanol mole ratio of 1:2 has the best catalyzing effect, and it has also higher activity after being used repeatedly 5 times, which shows the silica supporting catalyst has good stability. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Category: esters-buliding-blocks).

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. 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.Category: esters-buliding-blocks

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

Analysis of leaf volatiles from crabapple (Malus sp.) individuals of different juvenile lengths was written by Wu, Man;Shen, Xiang;Wang, Chao;Dong, Yan;Han, Tian-tian;Wang, Rong. And the article was included in Zhongguo Nongye Kexue (Beijing, China) in 2012.Quality Control of 2-Ethylhexyl benzoate The following contents are mentioned in the article:

The aim of this experiment was to analyze the leaf volatiles of crabapple (Malus sp.) individuals at different juvenile lengths, and obtain their particular leaf volatiles, and provide reference for finding out a new breeding method. Volatiles of leaves from eight different crabapple individuals were evaluated with the method of head space-solid phase micro-extraction and gas chromatog.-mass spectrometry (HS-SPME-GC-MS). Volatiles profiles of them were then compared. Eighty-four kinds of volatiles were detected with varied contents found in different individuals. The major leaf volatiles were 2-fluoro-acetamide, (Z)-3-Hexen-1-ol, di-Et phthalate and (Z)-3-Hexen-1-ol acetate. Ten identical compositions including 3,7-dimethyl-1,3,7-octatriene, decanal, di-Et phthalate, 2,6,10-trimethylpentadecane, 2,6,10-1-tetradecanol; 2,6,10,14-tetramethyl pentadecane, hexadecane, 1-dodecanol; 2,6,10,15-tetramethyl heptadecane and Phthalic acid, diisobutyl ester were detected. Leaf volatiles differ in eight crabapple individuals. But they are all based on esters and hydrocarbons and the highest content is 3-Hexen-1-ol, acetate. The specific volatiles in the precocious crabapple are (2Z)-2-Penten-1-ol, acetate (E)-cyclobutane, 1,3-butadienyl and 5,5-dibutylnonane. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Quality Control of 2-Ethylhexyl benzoate).

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.Quality Control of 2-Ethylhexyl benzoate

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