Category: 1731-94-8

Vaporization Enthalpies and Vapor Pressures of Two Insecticide Components, Muscalure and Empenthrin, by Correlation Gas Chromatography [Erratum to document cited in CA160:002041] was written by Spencer, Jessica;Chickos, James. And the article was included in Journal of Chemical & Engineering Data in 2014.Application of 1731-94-8 The following contents are mentioned in the article:

On page 3518, Tables 8 and 9 contained errors in referencing and transposition; the corrected tables are given. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Application of 1731-94-8).

Methyl nonadecanoate (cas: 1731-94-8) 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. 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.Application of 1731-94-8

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

Enhanced treatment of Fischer-Tropsch (F-T) wastewater using the up-flow anaerobic sludge blanket coupled with bioelectrochemical system: Effect of electric field was written by Wang, Dexin;Han, Hongjun;Han, Yuxing;Li, Kun;Zhu, Hao. And the article was included in Bioresource Technology in 2017.Name: Methyl nonadecanoate The following contents are mentioned in the article:

The coupling of bioelectrochem. system (BES) with an up-flow anaerobic sludge blanket (UASB) was established for enhanced Fischer-Tropsch (F-T) wastewater treatment while the UASB (control group) was operated in parallel. The presence of elec. field could offer system a more reductive micro-environment that lower the ORP values and maintain the appropriate pH range, resulting in the higher COD (COD) removal efficiency and methane production for BES-UASB (86.8% and 2.31 ± 0.1 L/(L·d)) while those values in control group were 72.1% and 1.77 ± 0.08 L/(L.d). In addition, the coupled system could promote sludge granulation to perform a pos. effect on maintaining stability of pollutants removal. The high-throughput 16S rRNA gene pyrosequencing in this study further confirmed that the promoting direct interspecies electron transfer (DIET) between Geobacter and Methanosarcina might be established in BES-UASB to improve the syntrophic degradation of propionate and butyrate, finally facilitated completely methane production This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Name: Methyl nonadecanoate).

Methyl nonadecanoate (cas: 1731-94-8) 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.Name: Methyl nonadecanoate

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

The food ingredients of different extracts of Lasia spinosa (L.) Thwaites can turn it into a potential medicinal food was written by Islam, Shahidul Md.;Rashid, Mamunur Md.;Ahmed, A. M. Abu;Ali Reza, A. S. M.;Rahman, Atiar Md.;Choudhury, Tasrina Rabia. And the article was included in NFS Journal in 2021.SDS of cas: 1731-94-8 The following contents are mentioned in the article:

This research investigated the functional food potential of L. spinosa through nutritional and phytochem. evaluation.Different solvent-extracts of L. spinosa extracts were GC-MS- analyzed, evaluated for antioxidative and nutritional status especially carbohydrates, polysaccharides, fat, protein, beta carotene, and lycopene contents. Minerals (Fe, Cu, Ca, Cr), and heavy metal (As, Cd, Pb, Cr) contents were also measured followed by acute toxicity in animal model. GC-MS characterized compounds greatly differed based on seven different solvent-extracts Promising antioxidative effects and nutritional values were recorded for at least five solvent-extracts Worthy contents of carbohydrates, polysaccharides, β-carotene, lycopene, fat, protein and minerals were detected in the L. spinosa. Heavy metals contents (As, Cd, Pb, Cr) in L. spinosa extract was lower than detection limit.Data demonstrate that L. spinosa stem and leaf could be potential source of functional food accredited with well-balanced nutrients and antioxidant properties. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8SDS of cas: 1731-94-8).

Methyl nonadecanoate (cas: 1731-94-8) 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.SDS of cas: 1731-94-8

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

Sustainable biodiesel production from a newly isolated micro-algal species Chlorococcum sphacosum using a novel lipase immobilised functionalized nanobiocataylst was written by Micheal, Donatus S.;Vijayalakshmi, S.;Ranjitha, J.. And the article was included in International Journal of Chemical Sciences in 2017.Reference of 1731-94-8 The following contents are mentioned in the article:

This research paper is mainly focused on the sustainable biodiesel production from a newly isolated micro-algal strain Chlorococcum sphacosum using a novel lipase immobilized functionalised nano-biocatalyst. In this reaction, the lipase was produced from Aspergillus niger (KP001169) a fungal strain isolated from oil contaminated soil sample collected nearby to the oil industry. The lipase was immobilized with magnetic nanoparticle using co-precipitation method and used as a nano-biocatalyst for the production of biodiesel production The synthesized nano-biocatalyst enhanced the percentage yield of biodiesel. Using the lipase immobilized magnetic nanoparticles as a biocatalyst achieved maximum percentage yield 88% resp. The catalyst can be reused more than five times in the biodiesel reaction without any treatment and activity changes and then after sixth cycle there is a loss in the activity of the synthesized nano-biocatalyst. Finally, the Fatty acid Me esters (FAMEs) composition was characterized using GC-MS anal. technique. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Reference of 1731-94-8).

Methyl nonadecanoate (cas: 1731-94-8) 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. 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.Reference of 1731-94-8

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

Application of sequential and orthogonalized-partial least squares (SO-PLS) regression to predict sensory properties of Cabernet Sauvignon wines from grape chemical composition was written by Niimi, Jun;Tomic, Oliver;Naes, Tormod;Jeffery, David W.;Bastian, Susan E. P.;Boss, Paul K.. And the article was included in Food Chemistry in 2018.COA of Formula: C20H40O2 The following contents are mentioned in the article:

The current study determined the applicability of sequential and orthogonalized-partial least squares (SO-PLS) regression to relate Cabernet Sauvignon grape chem. composition to the sensory perception of the corresponding wines. Grape samples (n = 25) were harvested at a similar maturity and vinified identically in 2013. Twelve measures using various (bio)chem. methods were made on grapes. Wines were evaluated using descriptive anal. with a trained panel (n = 10) for sensory profiling. Data was analyzed globally using SO-PLS for the entire sensory profiles (SO-PLS2), as well as for single sensory attributes (SO-PLS1). SO-PLS1 models were superior in validated explained variances than SO-PLS2. SO-PLS provided a structured approach in the selection of predictor chem. data sets that best contributed to the correlation of important sensory attributes. This new approach presents great potential for application in other explorative metabolomics studies of food and beverages to address factors such as quality and regional influences. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8COA of Formula: C20H40O2).

Methyl nonadecanoate (cas: 1731-94-8) 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 γ-valerolactone.COA of Formula: C20H40O2

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

Spectroscopic identification and GC-MS analysis of Merremia tridentata roots for Anti diabetic and anti bacterial drug identification was written by Thirunavukkarasu, K.;Rajkumar, P.;Selvaraj, S.;Kumaresan, S.. And the article was included in International Journal of TechnoChem Research in 2016.SDS of cas: 1731-94-8 The following contents are mentioned in the article:

Methanol extracts of roots of Merremia tridentata using soxhlet device was my present study. The crude extracts was analyzed by GC-MS, results need different peaks. Using standard reference from NIST, finding the presence of 10 phytochem. compounds with anti diabetic and antibacterial activities. The major phyto constituents were Dodecanoic acid (14.22), Tridecanoic acid, 12methyl-Me ester (15.05), undecanoic acid, 10 Me Me ester, Tetra decanoic acid. Hexa decanoic acid, 14-Me, Me ester, 10-octa undecanoic acid, Me ester(12.78), Nona decanoic acid, Me ester, Heneicosanoic acid, 20-oxo Me ester, Hexa decanoic acid, Me ester (22.92), Hepta decanoic acid, 16-Me lmethyl ester.s. Phytochem. anal. were made for the extracts to confirm the phytochem. existing in the roots. The isolated compound and its structural confirmation were made using FTIR -ATR techniques. The biol. activities are based on pass online Databases. Isolation and Identification of antidiabetic and antibacterial compound helps to approach herbal as an alternate remedy. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8SDS of cas: 1731-94-8).

Methyl nonadecanoate (cas: 1731-94-8) 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. 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.SDS of cas: 1731-94-8

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

Fatty acids methyl esters: Complementary measurements and comprehensive analysis of vaporization thermodynamics was written by Zaitsau, Dzmitry H.;Pimerzin, Andrey A.;Verevkin, Sergey P.. And the article was included in Journal of Chemical Thermodynamics in 2019.Computed Properties of C20H40O2 The following contents are mentioned in the article:

Vapor pressures of Me decanoate, Me undecanoate, Me tetradecanoate, Me hexadecanoate and Me octadecanoate were measured by using the static technique. Vapor pressures of Me dodecanoate, Me tridecanoate, Me tetradecanoate, Me heptadecanoate, and Me octadecanoate were measured by using the transpiration method. In the present work, vapor pressures of Me esters of the saturated fatty acids from Me propanoate to Me eicosanoate were collected from the literature. These data together with own complementary results were used for validation of methods for assessment of the difference Δ^g_lC^o_p,m required for the correct adjustment of vaporization enthalpies to the reference temperature 298.15 K. The evaluated vaporization enthalpies for esters from Me propanoate to Me eicosanoate demonstrate impeccable linear chain-length dependence. The CH₂ group contributions for different homologous series were derived and compared. Quant. anal. of dispersion interactions in the long-chained esters have been performed. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Computed Properties of C20H40O2).

Methyl nonadecanoate (cas: 1731-94-8) 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. 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.Computed Properties of C20H40O2

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

A Comprehensive Evaluation of the Density of Neat Fatty Acids and Esters was written by Knothe, Gerhard;Steidley, Kevin R.. And the article was included in Journal of the American Oil Chemists’ Society in 2014.Quality Control of Methyl nonadecanoate The following contents are mentioned in the article:

D. is one of the most important phys. properties of a chem. compound, affecting numerous applications. An application in the case of fatty acid esters (biodiesel) is that d. is specified in some biodiesel standards In the present work, the d. of fatty acid Me, Et, Pr, and Bu esters as well as triacylglycerols in the C₈-C₂₄ range was determined in the range of 15-40 °C with a densitometer utilizing the oscillating U-tube technique. Literature data on d. are compiled and compared, showing that data for these compounds are incomplete with discrepancies existing in some cases. Besides known effects such as d. decreasing with increasing chain length and increasing saturation, it is shown that trans fatty compounds exhibit lower d. than cis fatty compounds D. data for several saturated odd-numbered, C₁₈, as well as C₂₀ and C₂₂ polyunsaturated fatty esters are reported for the first time. The d. contribution of compounds with high m.ps. is predicted. An equation is given for the calculation of the d. of mixtures This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Quality Control of Methyl nonadecanoate).

Methyl nonadecanoate (cas: 1731-94-8) 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. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C 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. Quality Control of Methyl nonadecanoate

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

Analysis of volatile organic compounds in the ambient air of a paper mill- a case study was written by Tong, Xin;Zhang, Zhenbin;Chen, Xiaoquan;Shen, Wenhao. And the article was included in BioResources in 2015.Electric Literature of C20H40O2 The following contents are mentioned in the article:

In this work, volatile organic compounds (VOCs) in the ambient air of a secondary fiber paper mill were analyzed. For the sake of studying pollution comprehensively, four sites in the paper mill were analyzed and active sampling methods were used. Desorption was carried out with two solvents, carbon disulfide and dichloromethane. The compositions of VOCs were determined by gas chromatog.-mass spectrometry (GC-MS) method. The main identified substances in the four sites were as follows: (1) waste paper sorting room: alkanes, phenols, and esters; (2) papermaking workshop: benzene series, alkanes, ethers, and phenols; (3) vacuum pump outlet: benzene series and phenols; and (4) office area: benzene series and phenols. Two main toxic substances in VOCs, the benzene series and phenols, were detected in the ambient air of the paper mill. The benzene series existed in three places along the main process of the paper mill and even existed in the office area, which was far away from the production line. Addnl., phenols were detected in all sampling locations in the paper mill. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Electric Literature of C20H40O2).

Methyl nonadecanoate (cas: 1731-94-8) 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.Electric Literature of C20H40O2

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

Transesterification of castor oil for biodiesel production: Process optimization and characterization was written by Elango, Ragul Karthick;Sathiasivan, Kiruthika;Muthukumaran, Chandrasekaran;Thangavelu, Viruthagiri;Rajesh, Mathur;Tamilarasan, Krishnamurthi. And the article was included in Microchemical Journal in 2019.COA of Formula: C20H40O2 The following contents are mentioned in the article:

In the present study, batch scale biodiesel production was carried out using castor oil by alkali-catalyzed transesterification process was reported. Initially, the transesterification parameters like reaction time, catalyst concentration, reaction temperature and oil: methanol molar ratio on biodiesel production was optimized by conventional method followed by statistical based central composite design method. According to the optimized exptl. results, the maximum of 94.9% FAME yield was obtained at 60°C with 1.25% (w/v) KOH catalyst and 1:12 oil: methanol molar ratio for 60 min of reaction, which was in agreement with the predicted yield (93.7%). The purification of crude biodiesel was performed by simple evaporation and silica gel adsorption. The quality of fatty acid Me ester was examined by Fourier Transform IR spectroscopy (FT-IR), Thin layer chromatog. (TLC) and Gas Chromatog.-Mass Spectrometry (GC-MS). The anal. results showed that significant quantity of Me ester groups like ricinoleic, linolenic, palmitic acid and oleic acid were present in the biodiesel. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8COA of Formula: C20H40O2).

Methyl nonadecanoate (cas: 1731-94-8) 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. 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.COA of Formula: C20H40O2

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