Wang, Zhicai et al. published their research in Fuel Processing Technology in 2014 | 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.HPLC of Formula: 1731-94-8

Structural characterization of the thermal extracts of lignite was written by Wang, Zhicai;Shui, Hengfu;Pan, Chunxiu;Li, Liang;Ren, Shibiao;Lei, Zhiping;Kang, Shigang;Wei, Cheng;Hu, Jingchen. And the article was included in Fuel Processing Technology in 2014.HPLC of Formula: 1731-94-8 The following contents are mentioned in the article:

Thermal extraction (TE) with nonspecific solvent at high temperature is a potential technol. to sep. organic materials from coal, especially low-rank coal such as lignite. In this paper, thermal extract (TES) of Xianfeng lignite (XL) in toluene/methanol (3:1, volume) mixed solvent at 300 °C was separated into different sub-fractions by the method of column chromatog. combined with Soxhlet extraction in THF (THF). These sub-fractions were characterized by element anal., FTIR, 1H NMR and GC/MS. 78 compounds including C12-30 higher aliphatic hydrocarbons (HAHs), aromatic hydrocarbons (AHs), C17-27 fatty acid Me esters (FAMEs) and other heteroat. compounds were identified from the TES. As two groups of predominant components, HAHs and FAMEs are the intrinsic components in XL except for small amount of FAMEs produced by esterification and transesterification reactions in the TE process. Further, the mechanism of TE was also speculated by the characterization results of TES. As a result, the TE with nonspecific solvent at high temperature can not only improve the extract yield of organic materials, but also obtain chems. such as HAHs and FAMEs from lignite. 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. 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.HPLC of Formula: 1731-94-8

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