Tag: 300-400

Oecophyllibacter saccharovorans gen. nov. sp. nov., a bacterial symbiont of the weaver ant Oecophylla smaragdina was written by Chua, Kah-Ooi;See-Too, Wah-Seng;Tan, Jia-Yi;Song, Sze-Looi;Yong, Hoi-Sen;Yin, Wai-Fong;Chan, Kok-Gan. And the article was included in Journal of Microbiology (Seoul, Republic of Korea) in 2020.HPLC of Formula: 1731-94-8 The following contents are mentioned in the article:

In this study, bacterial strains Ha5^T, Ta1, and Jb2 were isolated from different colonies of weaver ant Oecophylla smaragdina. They were identified as bacterial symbionts of the ant belonging to family Acetobacteraceae and were distinguished as different strains based on distinctive random-amplified polymorphic DNA (RAPD) fingerprints. Cells of these bacterial strains were Gram-neg., rod-shaped, aerobic, non-motile, catalase-pos. and oxidase-neg. They were able to grow at 15-37掳C (optimum, 28-30掳C) and in the presence of 0-1.5% (w/v) NaCl (optimum 0%). Their predominant cellular fatty acids were C_18:1蠅7c, C_16:0, C_19:0蠅8c cyclo, C_14:0, and C_16:02-OH. Strains Ha5^T, Ta1, and Jb2 shared highest 16S rRNA gene sequence similarity (94.56-94.63%) with Neokomagataea tanensis NBRC106556T of family Acetobacteraceae. Both 16S rRNA gene sequence-based phylogenetic anal. and core gene-based phylogenomic anal. placed them in a distinct lineage in family Acetobacteraceae. These bacterial strains shared higher than species level thresholds in multiple overall genome-relatedness indexes which indicated that they belonged to the same species. In addition, they did not belong to any of the current taxa of Acetobacteraceae as they had low pairwise average nucleotide identity (<71%), in silico DNA-DNA hybridization (<38%) and average amino acid identity (< 67%) values with all the type members of the family. Based on these results, bacterial strains Ha5^T, Ta1, and Jb2 represent a novel species of a novel genus in family Acetobacteaceae, for which we propose the name Oecophyllibacter saccharovorans gen. nov. sp. nov., and strain Ha5T as the type strain. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8HPLC of Formula: 1731-94-8).

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. 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.HPLC of Formula: 1731-94-8

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

Paracetamol (acetaminophen) esters of some non-steroidal anti-inflammatory carboxylic acids as mutual prodrugs with improved therapeutic index was written by Fadl, T. A.;Omar, F. A.. And the article was included in Inflammopharmacology in 1998.Recommanded Product: 5003-48-5 The following contents are mentioned in the article:

Paracetamol (acetaminophen) esters [4a-f] of some acidic NSAIDs were synthesized and evaluated as mutual prodrug forms with the aim of improving the therapeutic index through prevention of the gastrointestinal toxicity. The structures of the synthesized esters were confirmed by IR and ¹H-NMR spectroscopy and their purity was established by elemental analyses and TLC. In-vitro stability studies revealed that the synthesized ester prodrugs 4a-f are sufficiently chem. stable in non-enzymic simulated gastric fluid (hydrochloric acid buffer of pH 1.3 (t_1/2 鈭?15-45 h)) and in phosphate buffer of pH 7.4 (t_1/2 鈭?4-40 h). In 80% human plasma and 10% rat liver homogenate, the mutual prodrugs were found to be susceptible to enzymic hydrolysis releasing the corresponding NSAID and paracetamol at relatively faster rates (t_1/2 鈮?15-385 min and 1-140 min, resp.). Calculated log P values indicated that the prodrugs 4a-f are more lipophilic than the parent drugs. In-vivo experiments in rabbits showed higher plasma levels of ibuprofen after oral administration of its ester prodrug 4b compared with those resulting from an equivalent amount of the corresponding phys. mixture Moreover, significant improvement in latency of pain threshold in mice has been observed up to 4 h after po administration of 0.02 mmol/kg of the prodrugs, compared with the corresponding phys. mixtures Gross observations and scanning electromicrographs of the stomach showed that the prodrugs induced very little irritancy in the gastric mucosa of mice after oral administration for 4 days. These results suggest that the synthesized mutual ester prodrugs were characterized by a better therapeutic index than the parent drugs. This study involved multiple reactions and reactants, such as 4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5Recommanded Product: 5003-48-5).

4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. 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.Recommanded Product: 5003-48-5

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

Enhancing the synergism of Fe₃O₄ and Fe₅C₂ to improve the process of CO₂ hydrogenation to olefines was written by Ye, Daoping;Tang, Wenxiang;Zhang, Tao;Lv, Li;Zou, Zongpeng;Gupta, Raju Kumar;Tang, Shengwei. And the article was included in Colloids and Surfaces, A: Physicochemical and Engineering Aspects in 2022.Formula: C21H44O5 The following contents are mentioned in the article:

CO₂ hydrogenation to olefines is a feasible carbon capture and utilization (CCU) route. The process includes sequential reactions of reverse water gas shift (RWGS) reaction and Fischer-Tropsch synthesis (FTS) reaction. The acceleration of FTS is crucial to improve the olefines yield. A microemulsion anti-solvent extraction (MAE) method was proposed to prepare Fe-based catalyst on the support of Al₂O₃. Ethanol solution of Fe(NO₃)₃ was encapsulated in microdroplets, and then loaded on Al₂O₃ by the extraction of ethanol from the microdroplets to isooctane phase. The average size of micro droplets was 7.5 nm. After calcination, the particle size of Fe₂O₃ was 6 nm. After carburization with CO, the interface formed between Fe₃O₄ and Fe₅C₂ was restricted in a narrow space with a mean size of 12 nm. Through TEM-Mapping, XRD, XPS and TPC characterization, the distribution uniformity of Fe and the neighboring degree of Fe₃O₄ and Fe₅C₂ on the as-prepared catalyst MAE-Fe1K1 was improved effectively. An enhanced synergistic effect between Fe₃O₄ and Fe₅C₂ was obtained. The catalytic performance evaluation results showed that yield of C₂-C₄ olefins reached 0.063 mmol.gFe^-1.s^-1 after 12 h of reaction. It exhibited better catalytic performance than most catalysts reported in the literatures. The results showed that the proposed microemulsion anti-solvent extraction strategy is an effective method to prepare Fe-based catalyst for CO₂-FTO reaction with an excellent catalytic performance. This study involved multiple reactions and reactants, such as Glyceryl monostearate (cas: 31566-31-1Formula: C21H44O5).

Glyceryl monostearate (cas: 31566-31-1) 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. Polyesters are important plastics, with monomers linked by ester moieties. 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.Formula: C21H44O5

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

Intranasal delivery of chitosan decorated nanostructured lipid carriers of Buspirone for brain targeting: Formulation development, optimization and In-Vivo preclinical evaluation was written by Noorulla, K. M.;Yasir, Mohd;Muzaffar, Faizi;S, Roshan;Ghoneim, Mohammed M.;Almurshedi, Alanood S.;Tura, Abdurazak J.;Alshehri, Sultan;Gebissa, Teshome;Mekit, Shimelis;Ahmed, Mohammed Muqtader;Zafar, Ameeduzzafar. And the article was included in Journal of Drug Delivery Science and Technology in 2022.Related Products of 31566-31-1 The following contents are mentioned in the article:

The current research was portrayed to design and optimize the Chitosan (CH) coated Buspirone-loaded nanostructured lipid carriers (BPE-CH-NLCs) for nose to brain delivery. NLCs were developed by solvent diffusion evaporation technique, coated with CH, and then optimized to the maximum efficiency using the quality by design (QbD) based Box-Behnken design (BBD). Glyceryl monostearate (GMS) & oleic acid mixture and tween 80 were used as a lipid and surfactant, resp. The prepared NLCs were subjected to in-vitro characterization. In-vivo pharmacokinetic and neuro-pharmacokinetic (drug targeting efficiency-DTE, direct transport percentage-DTP) parameters were evaluated on Wister rats. The results revealed that the optimized formulation exhibited acceptable PS (190.98 卤 4.72 nm), ZP (+17.47 mV), and EE (80.53 卤 1.26% weight/weight), and the TEM image showed that the drug was incorporated adequately in NLCs. DSC findings exposed that the drug was present in amorphous form within the NLCs. The optimized formulation exhibited 27.61 mo shelf life and was found to be stable under studied conditions. The value of AUC (bioavailability) for BPE-CH-NLCs administered i.n was found to be 3.06 folds compared to BPE-CH-NLCs administered i.v, and 2.17 folds compared to BPE-Sol administered i.n. A higher value of DTE (1462.49%) for developed NLCs confirmed the brain targeting efficiency of these lipid nanoparticles. DTP value for BPE-CH-NLCs (93.16%) was significantly (p < 0.05) higher than BPE-Sol (81.63%), indicating the efficient targeting potential of lipid nanoparticles compared to drug solutions Finally, it could be possible to infer that GMS-Oleic acid-based NLCs coated with CH might be effective carriers to administer BPE to the brain via the nasal route. This study involved multiple reactions and reactants, such as Glyceryl monostearate (cas: 31566-31-1Related Products of 31566-31-1).

Glyceryl monostearate (cas: 31566-31-1) 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. 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.Related Products of 31566-31-1

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

Solubility of benorilate in twelve monosolvents: Determination, correlation and COSMO-RS analysis was written by Hu, Weiguo;Shang, Zeren;Wei, Ning;Hou, Baohong;Gong, Junbo;Wang, Yan. And the article was included in Journal of Chemical Thermodynamics in 2021.Safety of 4-Acetamidophenyl 2-acetoxybenzoate The following contents are mentioned in the article:

The solubility of benorilate in twelve monosolvents (methanol, ethanol, n-propanol, isopropanol, Bu alc., isobutanol, Et formate, Et acetate, iso-Pr acetate, Me acetate, acetonitrile and acetone) was determined at temperatures ranging from 278.15 K to 318.15 K using a static method under atm. pressure. The solubility trend of benorilate has two features, one is that the solubility increases with rising temperature, the other is that benorilate generally has larger solubility in dipolar aprotic solvents than in polar protic solvents. Furthermore, three classical thermodn. models (modified Apelblat model, 位h model and NRTL model) were used to correlate these determined solubility data, and modified Apelblat model shows the minor deviation than other models. Moreover, three solution thermodn. parameters of mixing process were analyzed on the basis of NRTL model, and the mixing process was found to be spontaneous and entropy-driven. This work also used COSMO-RS model to predict reasonable solubility data of benorilate with exptl. thermal anal. method and reference solubility method resp. The underlying mechanism of benorilate and solvent mols. in solubility behavior was qual. analyzed by physicochem. properties and sigma profiles of the studied systems. The mol. interaction energies of benorilate in the studied solvents were computed on the basis of COSMO-RS model, and the computed values were also used to quant. analyze interactions in solutions of benorilate. The results obtained by qual. and quant. anal. demonstrate that the solvation of benorilate is a complicated process which is subject to the combined effects of a variety of mol. interactions. This research could provide guidance for the crystallization process optimization of benorilate. This study involved multiple reactions and reactants, such as 4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5Safety of 4-Acetamidophenyl 2-acetoxybenzoate).

4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5) 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. 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.Safety of 4-Acetamidophenyl 2-acetoxybenzoate

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

Optimization of antifungal edible pregelatinized potato starch-based coating formulations by response surface methodology to extend postharvest life of ‘Orri’ mandarins was written by Soto-Munoz, Lourdes;Palou, Lluis;Argente-Sanchis, Maricruz;Ramos-Lopez, Miguel Angel;Perez-Gago, Maria B.. And the article was included in Scientia Horticulturae (Amsterdam, Netherlands) in 2021.Reference of 31566-31-1 The following contents are mentioned in the article:

Antifungal composite edible coatings (ECs) formulated with pregelatinized potato starch (PPS, 1.0-2.0% weight/weight) as biopolymer, glyceryl monostearate (GMS, 0.5-1.5%, weight/weight) as hydrophobe, glycerol (Gly, 0.5-1.5%, weight/weight) as plasticizer, and sodium benzoate (SB, 2%, weight/weight) as antifungal agent were optimized using the Box-Behnken response surface methodol. to extend the postharvest life of ‘Orri’ mandarins. The second order polynomial models satisfactorily fitted the exptl. data, with high values of the coefficient of determination for the different variables (R2>0.91). The individual linear effect of GMS concentration was significant in all the responses evaluated, whereas PPS only affected emulsion viscosity, fruit tacking, and weight loss of coated mandarins. Gly only affected acetaldehyde content in the juice of coated mandarins when interacted with PPS and in the quadratic effect. The optimum concentrations of PPS, GMS, and Gly based on maximum fruit quality and required emulsion properties were predicted to be 2.0, 0.5, and 1.0% (weight/weight), resp. The optimized EC reduced weight loss of mandarins and created a modified atm. within the fruit without neg. affecting the overall acceptability of the fruit. On the other hand, the optimized EC significantly reduced postharvest green and blue molds and sour rot on mandarins artificially inoculated with the pathogens Penicillium digitatum, Penicillium italicum, and Geotrichum citri-aurantii, resp. Therefore, the optimized antifungal EC containing SB showed potential to control the main postharvest diseases and maintain the overall quality of ‘Orri’ mandarins and could be a suitable alternative to com. citrus waxes formulated with conventional chem. fungicides. This study involved multiple reactions and reactants, such as Glyceryl monostearate (cas: 31566-31-1Reference of 31566-31-1).

Glyceryl monostearate (cas: 31566-31-1) 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.Reference of 31566-31-1

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

Improved quantitative analysis of molecular constituents of wastewater sludge pellets using double-shot thermochemolysis-GCMS was written by Collard, Marie;Teychene, Benoit;Lemee, Laurent. And the article was included in Journal of Analytical and Applied Pyrolysis in 2015.Electric Literature of C20H40O2 The following contents are mentioned in the article:

Pellets made from sewage sludge are a byproduct from wastewater, and understanding their composition is desirable to determine a suitable end use. Due to its relatively high content of lipids, sludge can be considered as a feedstock for biodiesel production, and this solvent-soluble fraction of OM has been widely studied. We assessed double-shot thermochemolysis-GCMS (gas chromatog. coupled with mass spectrometry) for its usefulness in efficiently characterizing the biodegradable and refractory fractions. Bulk- and mol.-level properties were analyzed using multiple conventional anal. techniques and compared with those of thermochemolysis-GCMS. Wastewater sludge pellets (WWSPs) were characterized using elemental anal., attenuated total reflectance Fourier transform IR spectroscopy, and thermogravimetric anal. Lipids were characterized using thin layer chromatog., proton NMR, and GCMS. Double-shot thermochemolysis-GCMS was used to characterize WWSPs at the mol. level, before or after lipid extraction Thermochemolysis-GCMS was done quant. Fatty acids and steroids were the main thermochemolysis products released by the first shot of lipids and of the raw sample. Aromatic compounds were the main thermochemolysis products from the second shot of residue and were also released by the second shot of the raw sample. The total amount of identified products of the first shot of lipids and the second shot of residue was 21 mg/g pellets. On the other hand, double-shot thermochemolysis-GCMS of the raw sample before lipid extraction gave access to 74 mg/g pellets. Moreover the relative percentages of the three classes of compounds were similar in both cases. Double-shot thermochemolysis-GCMS is an accurate and efficient method for characterizing WWSPs. 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 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. 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.Electric Literature of C20H40O2

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

Preparation of solid lipid nanoparticles and nanostructured lipid carriers containing zeaxanthin and evaluation of physicochemical properties was written by Osanlou, Roya;Emtyazjoo, Mozhgan;Banaei, Aghdas;Hesarinejad, Mohammad Ali;Ashrafi, Fatemeh. And the article was included in Colloids and Surfaces, A: Physicochemical and Engineering Aspects in 2022.Application of 31566-31-1 The following contents are mentioned in the article:

Zeaxanthin is a yellow carotenoid antioxidant concentrated in the macula. This pigment in many foods and beverages is very problematic due to its extreme hydrophobicity and poor chem. stability. Solid lipid nanoparticles (SLNs) and nanostructure lipid carriers (NLCs) were prepared using a combination of high shear homogenization and ultrasonic methods to load zeaxanthin and reduce its hydrophobicity. In this study, NLCs containing zeaxanthin were produced and optimal formulation was determined and their physicochem. properties were investigated. 20% percent of solid lipid was replaced with Medium-chain triglyceride (MCT) as a liquid lipid to produce NLCs. Results showed that the particle size (PS) of NLCs did not exceed 130 nm, but SLNs did show larger sizes. In addition, particle dispersion index (PDI) showed 0.23 卤 0.01 to 0.34 卤 0.01 and 0.23 卤 0.01 to 0.30 卤 0.01 for SLN and NLC, resp. Zeta potential (ZP) represented -20.03 卤 0.48 to -12.11 卤 0.80 and -22.23 卤 0.41 to -16.88 卤 0.61 for SLN and NLC, resp. Encapsulation efficiency and loading were higher for NLCs than SLNs. The morphol. study of nanocarriers performed by scanning electron microscope (SEM) showed smooth spherical nanoparticles. Results of Fourier transform IR spectroscopy (FTIR) anal., and differential scanning calorimeter (DSC) showed that zeaxanthin was trapped in the nanocarriers without any chem. interaction with the coating material. Glycerol mono-stearate containing zeaxanthin showed phase separation after 60 days at 4 and 25掳C, while this was not observed in nanocarriers produced by glycerol distearate. Together, these nano-based carriers can be applied in many products, especially as nanocarriers for hydrophobic bioactive compounds in nutraceutical beverages. This study involved multiple reactions and reactants, such as Glyceryl monostearate (cas: 31566-31-1Application of 31566-31-1).

Glyceryl monostearate (cas: 31566-31-1) 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. Polyesters are important plastics, with monomers linked by ester moieties. 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.Application of 31566-31-1

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

How Does the Quality of Phospholipidosis Data Influence the Predictivity of Structural Alerts? was written by Przybylak, Katarzyna R.;Alzahrani, Abdullah Rzgallah;Cronin, Mark T. D.. And the article was included in Journal of Chemical Information and Modeling in 2014.Product Details of 5003-48-5 The following contents are mentioned in the article:

The ability of drugs to induce phospholipidosis (PLD) is linked directly to their mol. substructures: hydrophobic, cyclic moieties with hydrophilic, peripheral amine groups. These structural properties can be captured and coded into SMILES arbitrary target specification (SMARTS) patterns. Such structural alerts, which are capable of identifying potential PLD inducers, should ideally be developed on a relatively large but reliable data set. We had previously developed a model based on SMARTS patterns consisting of 32 structural fragments using information from 450 chems. In the present study, addnl. PLD structural alerts have been developed based on a newer and larger data set combining two data sets published recently by the United States Food and Drug Administration (US FDA). To assess the predictive performance of the updated SMARTS model, two publicly available data sets were considered. These data sets were constructed using different criteria and hence represent different standards for overall quality. In the first data set high quality was assured as all neg. chems. were confirmed by the gold standard method for the detection of PLD-transmission electron microscopy (EM). The second data set was constructed from seven previously published data sets and then curated by removing compounds where conflicting results were found for PLD activity. Evaluation of the updated SMARTS model showed a strong, pos. correlation between predictive performance of the alerts and the quality of the data set used for the assessment. The results of this study confirm the importance of using high quality data for modeling and evaluation, especially in the case of PLD, where species, tissue, and dose dependence of results are addnl. confounding factors. This study involved multiple reactions and reactants, such as 4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5Product Details of 5003-48-5).

4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5) 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. 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.Product Details of 5003-48-5

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

Heterosegmental Modeling of Long-Chain Molecules and Related Mixtures using PC-SAFT: 1. Polar Compounds was written by Haarmann, Niklas;Enders, Sabine;Sadowski, Gabriele. And the article was included in Industrial & Engineering Chemistry Research in 2019.HPLC of Formula: 1731-94-8 The following contents are mentioned in the article:

A broad range of fatty acids as well as fatty-acid-based, long-chain compounds are synthesized on the basis of triglycerides, which are mainly found in natural fats and oils. These long-chain compounds comprise, for instance, fatty-acid Me and Et esters and fatty aldehydes. Saturated representatives of these individual families are composed of an identical head domain which is connected to an n-alkylic residue that only varies in chain length within a homologous series. In this work, this fact was taken into account for modeling of thermodn. properties using a heterosegmental approach of the Perturbed Chain Statistical Associating Fluid Theory. For this purpose, the n-alkylic residue within a homologous series was modeled using the pure-component parameters of n-alkanes, whereas the parameters for each identical head domain were universally determined With this heterosegmental approach, polar interactions among the identical head domains were explicitly taken into account. Due to its group-contribution-like character, the heterosegmental approach enables the prediction of thermodn. properties of other compounds within a homologous series. Applying the new approach, vapor pressures and liquid densities of the pure long-chain compounds could be represented in good agreement with the available exptl. data. Furthermore, the interactions between the n-alkylic residue and water can be described using independent solubility data of the binary n-alkane + water mixtures Excess enthalpies and excess volumes of the binary long-chain compound + n-alkane mixtures as well as mutual solubilities in the binary Me alkanoate + water mixtures were predicted to be in remarkable agreement with the available exptl. data for a broad range of chain lengths. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8HPLC of Formula: 1731-94-8).

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. 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.HPLC of Formula: 1731-94-8

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