Category: 104-76-7

Takenaka, Ikuo Risa; Fujimura, Koji; Narukami, Shoji; Sasaki, Tomohiro; Maeda, Tsuneaki published the artcile< Quantitative determination of 2-ethyl-1-hexanol, texanol and TXIB in in-door air using a solid-phase extraction-type collection device followed by gas chromatography-mass spectrometry>, Product Details of C8H18O, the main research area is ethyl hexanol texanol TXIB air solid phase extraction GCMS; Semi-volatile organic compounds; gas chromatography–mass spectrometry; sample preparation; sick house syndrome.

In this study, in-door air semi-volatile organic compounds (SVOCs) including 2-ethyl- 1-hexanol, 2,2,4-trimethyl-1,3- pentanediol monoisobutyrate (texanol). and 2,2,4-trimethyl-1,3-pentanediol diisobutyrate (T M ), which are scheduled for adding as regulated compounds concerning indoor air reference values in Japan, were quant. extracted using a solid-phase extraction-type collection device, followed by sensitively determined by gas chromatog.-mass spectrometry. The developed method has shown a good extraction recovery up to an air sampling volume of 900 L. The extracted analytes were quant. and rapidly eluted by 7 mL of acetone. The limit of quantification of the analytes were 0.7, 2.1 and 0.2 ng L-1 in air sample at a sampling volume of 300 mL without any concentration of a desorption solvent. The developed method was applied to simultaneous determinations of the investigated target analytes and phthalate esters in real indoor air samples.

Analytical Sciences published new progress about Air analysis. 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, Product Details of C8H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wang, Xiaoda; Gao, Yuan; Li, Chaoqun; Huang, Zhixian; Qiu, Ting published the artcile< Liquid-Liquid Equilibria for the Ternary Systems of Water + Thioglycolic Acid + 2-Ethyl-1-hexyl Thioglycolate and Water + 2-Ethyl-1-hexyl Thioglycolate + 2-Ethyl-1-hexanol at 293.15, 303.15, and 313.15 K under 101 kPa>, Formula: C8H18O, the main research area is liquid equilibrium ternary system; water thioglycolic acid ethylhexyl thioglycolate ethylhexanol.

Liquid-liquid equilibrium data were determined for the two ternary systems of water + thioglycolic acid (TGA) + 2-ethyl-1-hexyl thioglycolate (ETE) and water + 2-ethyl-1-hexyl thioglycolate (ETE) + 2-ethyl-1-hexanol (EHL) at 293.15, 303.15, and 313.15 K under 101 kPa. The nonrandom two-liquid (NRTL) and universal quasi-chem. (UNIQUAC) activity coefficient models were used to correlate the exptl. LLE data. The LLE data calculated by the NRTL and UNIQUAC models were in good agreement with the exptl. ones.

Journal of Chemical & Engineering Data published new progress about Liquid-liquid equilibrium. 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, Formula: C8H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Su, Jiaojiao; Wang, Shengliang; Xu, Zhijun; Wu, Guangyu; Wang, Lei; Huang, Xin published the artcile< Interfacial self-assembly of gold nanoparticle-polymer nanoconjugates into microcapsules with near-infrared light modulated biphasic catalysis efficiency>, Synthetic Route of 104-76-7, the main research area is interfacial self assembly gold nanoparticle polymer nanoconjugate; microcapsule nanoparticle nearIR light modulated biphasic catalysis.

A high throughput way to generate gold nanoparticle-based microcapsules was demonstrated based on the interfacial assembly in a water and 2-ethyl-1-hexanol two phase system. The obtained gold microcapsules exhibit superior stability, good flexibility, ductility, and a significant enhancement (about 10-fold) in the biphasic catalytic reaction rate upon near-IR light irradiation

Chemical Communications (Cambridge, United Kingdom) published new progress about Catalysis. 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, Synthetic Route of 104-76-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zou, Chun; Li, Ru-Yi; Chen, Jian-Xin; Wang, Fang; Gao, Ying; Fu, Yan-Qing; Xu, Yong-Quan; Yin, Jun-Feng published the artcile< Zijuan tea- based kombucha: Physicochemical, sensorial, and antioxidant profile>, COA of Formula: C8H18O, the main research area is Camellia sugar glucose sucrose beta linalool levomenthol anthocyanin antioxidant; Anthocyanins; Antioxidant activity; Attractive color; Kombucha; Zijuan tea.

Zijuan tea is a representative anthocyanin-rich tea cultivar in China. In this study, Zijuan tea was used to produce a novel kombucha beverage (ZTK). The physicochem., sensory properties, and antioxidant activity of ZTK were compared with that of black tea kombucha (BTK) and green tea kombucha (GTK). Results indicated that after fermentation, the color of ZTK changed from yellowish-brown to salmon-pink, because its anthocyanins (4.5 mg/L) appeared red in acidic conditions. Meanwhile no significant changes of color were observed in BTK and GTK. The dynamic changes of pH, biomass, and concentrations of sugars, amino acids, and main organic acids were similar in three kombucha beverages, except catechins showing different trends. Moreover, ZTK showed the highest overall acceptability score, antioxidant activity, and concentration of volatiles among the three kombucha beverages. Therefore, Zijuan tea is suitable for the preparation of kombucha beverage with attractive color and health benefits.

Food Chemistry published new progress about Alcohols Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, COA of Formula: C8H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Nezam, Iman; Peereboom, Lars; Miller, Dennis J. published the artcile< Continuous condensed-phase ethanol conversion to higher alcohols: Experimental results and techno-economic analysis>, Name: 2-Ethylhexan-1-ol, the main research area is alumina supported nickel lanthanum oxide catalyst; ethanol conversion higher alc technoeconomic analysis.

The conversion of ethanol to n-butanol and higher alcs. is carried out in a continuous fixed bed reactor over a Ni/La2O3/γ-Al2O3 catalyst at 210-250°C and 100 bar. At these conditions, the reaction mixture is a condensed, near-critical phase that facilitates higher reaction rates than corresponding vapor phase reactions. Combined selectivity to n-butanol and C6+ higher alcs. reached 74% at 41% ethanol conversion. A process concept is presented in which n-butanol and mixed C6+ alcs. are produced as saleable products; ethanol is recycled to achieve nearly 100% overall conversion and minor byproducts are burned to provide process energy. A process design is conducted using aspen plus V8.4 process simulation software and economic analyses are carried out for several cases of ethanol conversion and alcs. selectivities. Several addnl. cases involving permutations of the base process configuration are also examined in attempts to improve process economics. At n-butanol selectivities achieved exptl., a facility producing 75 million kg n-butanol per yr has a total capital cost of 8.1 million with a required n-butanol selling price of .55/kg to .60/kg for typical values of expected return on investment.

Journal of Cleaner Production published new progress about Aliphatic alcohols Role: IMF (Industrial Manufacture), PREP (Preparation). 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, Name: 2-Ethylhexan-1-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Nataraj, Bojan; Maharajan, Kannan; Hemalatha, Devan; Rangasamy, Basuvannan; Arul, Narayanasamy; Ramesh, Mathan published the artcile< Comparative toxicity of UV-filter Octyl methoxycinnamate and its photoproducts on zebrafish development>, HPLC of Formula: 104-76-7, the main research area is toxicity UV Octyl methoxycinnamate photoproduct zebrafish development; Antioxidants; Embryotoxicity; Histopathology; Photoproducts; UV filter; Zebrafish.

In the present study, we explored the adverse effects of Octyl methoxycinnamate (OMC), and its photoproducts, namely 2-ethylhexanol (2-EH) and 4-methoxybenzaldehyde (4-MBA) on the developmental stages of zebrafish using various biomarkers such as developmental toxicity, oxidative stress, antioxidant response, neurotoxicity and histopathol. changes. The 96 h effective concentrations (EC50) of OMC, 2-EH and 4-MBA were found to be 64.0, 34.0 and 3.5μg/mL, resp. in the embryo toxicity test. Embryos exposed to the EC50 of OMC, 2-EH and 4-MBA showed time-dependent increases in the malformation, heart rate and hatching delay. The lipid peroxidation (LPO) level was significantly (p < 0.05) increased and both induction and inhibition of SOD, CAT, GPx and GST activities were observed in the zebrafish embryos exposed to OMC, 2-EH and 4-MBA. GSH activity was significantly (p < 0.05) decreased in the highest exposure groups, when compared with the control. AChE activity was increased in lower concentrations of OMC, 2-EH and 4-MBA exposed embryos whereas, the activity was found to be decreased in highest concentration Moreover, the histopathol. studies showed severe damage to the muscle fibers and yolk sac regions of the larvae with 4-MBA treatment. The photoproduct 4-MBA has the highest toxic effect, followed by 2-EH and OMC. Our results provide useful insights into the impacts of OMC and its photoproducts on zebrafish development. Science of the Total Environment published new progress about Danio rerio. 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, HPLC of Formula: 104-76-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Rios, Italo C.; Cordeiro, Joao P.; Arruda, Tathilene B. M. G.; Rodrigues, F. Eduardo A.; Uchoa, Antonia F. J.; Luna, F. Murilo T.; Cavalcante, Celio L. Jr; Ricardo, Nagila M. P. S. published the artcile< Chemical modification of castor oil fatty acids (Ricinus communis) for biolubricant applications: An alternative for Brazil's green market>, Electric Literature of 104-76-7, the main research area is Ricinus castor oil fatty toluenesulfonic acid biolubricant.

Plants oils have been increasingly gaining acceptance in world markets, due to their great potential as raw material to replace conventional mineral oils for formulation of lubricants. In this study, samples of new potential bio-based lubricant mols. were synthesized from castor oil fatty acids. The synthesis occurred in three steps: esterification with 2-ethyl-1-hexanol, epoxidation and opening of oxirane rings with different nucleophilic agents: 1-butanol (BIOBUT) and water (BIOWAT). The main objective was to study the influence of hydroxyl groups and branching level on physicochem. properties and thermal degradation of samples. The products obtained in each step were characterized by 1H NMR and their physicochem. properties. The results indicated that the less polar samples (BIOBUT) exhibited a better low-temperature performance (PP -48°C). Furthermore, BIOBUT has superior oxidation stability (IP 4.22 h) compared to BIOWAT (IP 3.27 h). However, the BIOWAT showed a higher viscosity values (> 470 mm2/s at 40°C). Thermogravimetric analyses have indicated that BIOWAT shows better thermal stability. Finally, the activation energy determined for the first thermal event for BIOWAT (151 kJ.mol-1) was higher than BIOBUT.

Industrial Crops and Products published new progress about Activation energy. 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, Electric Literature of 104-76-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wei, Shouhui; Xiao, Xuemei; Wei, Lijuan; Li, Lushan; Li, Guichen; Liu, Fanhong; Xie, Jianming; Yu, Jihua; Zhong, Yuan published the artcile< Development and comprehensive HS-SPME/GC-MS analysis optimization, comparison, and evaluation of different cabbage cultivars (Brassica oleracea L. var. capitata L.) volatile components>, Safety of 2-Ethylhexan-1-ol, the main research area is Brassica volatile compound flavor HS SPME GCMS; Cabbage cultivars; HCA; HS-SPME/GC–MS; OAVs; PCA; RFC; Volatile compounds.

Seven parameters of the headspace solid phase micro-extraction (HS-SPME) for extracting volatile compounds from cabbage were optimized comprehensively for the first time. A total of 75 volatiles were identified and quantified in 10 cabbage cultivars, mainly including aldehydes, hydrocarbons, esters, isothiocyanates, alcs., ethers, nitriles and thiazoles. Di-Me ether was the most abundant volatile. There were 24 volatiles with the odor activity values (OAVs) greater than 1 making large contributions to the cabbage flavor. Pungent aroma was the strongest odor, followed by green and fruity aromas. In short, the overall OAV of purple cabbages were generally higher than that of green cabbage. The volatile profile of 10 cabbage cultivars could be distinguished on the basis of radar fingerprint chart (RFC), hierarchical cluster anal. (HCA) and principal component anal. (PCA). Therefore, this study not only developed a feasible method to distinguish different cabbage cultivars, but also established a theor. basis for the genetic improvement of cabbage flavor.

Food Chemistry published new progress about Alcohols Role: ANT (Analyte), ANST (Analytical Study). 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, Safety of 2-Ethylhexan-1-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Giorello, Facundo; Valera, Maria Jose; Martin, Valentina; Parada, Andres; Salzman, Valentina; Camesasca, Laura; Farina, Laura; Boido, Eduardo; Medina, Karina; Dellacassa, Eduardo; Berna, Luisa; Aguilar, Pablo S.; Mas, Albert; Gaggero, Carina; Carrau, Francisco published the artcile< Genomic and transcriptomic basis of Hanseniaspora vineae's impact on flavor diversity and wine quality>, COA of Formula: C8H18O, the main research area is Hanseniaspora exometabolome genomics transcriptomics flavor diversity wine quality; Illumina; flavor compounds; genome; metabolome; transcriptome; wine aroma.

Hanseniaspora is the main genus of the apiculate yeast group that represents approx. 70% of the grape-associated microflora. Hanseniaspora vineae is emerging as a promising species for quality wine production compared to other non-Saccharomyces species. Wines produced by H. vineae with Saccharomyces cerevisiaeconsistently exhibit more intense fruity flavors and complexity than wines produced by S. cerevisiae alone. In this work, genome sequencing, assembling, and phylogenetic anal. of two strains of H. vineae showed that it is a member of the Saccharomyces complex and it diverged before the whole-genome duplication (WGD) event from this clade. Specific flavor gene duplications and absences were identified in the H. vineae genome compared to 14 fully sequenced industrial S. cerevisiae genomes. The increased formation of 2-phenylethyl acetate and phenylpropanoids such as 2-phenylethyl and benzyl alcs. might be explained by gene duplications of H. vineae aromatic amino acid aminotransferases (ARO8 and ARO9) and phenylpyruvate decarboxylases (ARO10). The identification of six proteins, different from S. cerevisiae ATF, with diverse acetyltransferase domains in H. vineae offers a relevant source of native genetic variants for this enzymic activity. The discovery of benzenoid synthesis capacity in H. vineae provides a new eukaryotic model to dilucidate an alternative pathway to that catalyzed by plants’ phenylalanine lyases.

Applied and Environmental Microbiology published new progress about Alcohols Role: ANT (Analyte), BSU (Biological Study, Unclassified), ANST (Analytical Study), BIOL (Biological Study). 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, COA of Formula: C8H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kim, Heejin; Kim, Taehoon; Choi, Nakyung; Kim, Byung Hee; Oh, Se-Wook; Kim, In-Hwan published the artcile< Synthesis of diethylhexyl adipate by Candida antarctica lipase-catalyzed esterification>, Electric Literature of 104-76-7, the main research area is diethylhexyl adipate esterification immobilization Candida antarctica lipase.

Diethylhexyl adipate (DEHA) has been used for various applications in the chem. industry. In particular, DEHA is used as a plasticizer for polyvinyl chloride and its polymers. In this study, DEHA was successfully synthesized via lipase-catalyzed esterification from adipic acid with ethylhexanol in a solvent-free system. An immobilized lipase from Candida antarctica (Novozym 435) was used as a biocatalyst in this reaction. The optimal reaction conditions for the synthesis of DEHA were temperature of 50°C, an enzyme loading of 5% (based on the total weight of substrate), a vacuum of 6.7 kPa, and a molar ratio 1:2.5 (adipic acid to ethylhexanol). When vacuum was applied, the conversion to DEHA was improved significantly and 100 mol% conversion was obtained within only 3 h under optimal condition.

Process Biochemistry (Oxford, United Kingdom) published new progress about Optimization. 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, Electric Literature of 104-76-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts