Month: September 2022

Dias, L. G.;Hacke, A.;Bergara, S. F.;Villela, O. V.;Mariutti, L. R. B.;Bragagnolo, N. published 《Identification of volatiles and odor-active compounds of aromatic rice by OSME analysis and SPME/GC-MS》. The research results were published in《Food Research International》 in 2021.Application In Synthesis of 4-tert-Amylphenol The article conveys some information:

During cooking, aromatic rice has a pleasant and characteristic aroma, a relevant factor to add sale value and attract consumer interest. This work studied the volatile compounds of aromatic rice (IAC 500) aiming at identifying those responsible for the aroma and flavor of the cooked rice. The description of the aromatic notes of the IAC 500 rice was carried out by a trained and selected sensory panel, followed by olfactometry (OSME) and identification by GC-MS of the rice volatile compounds extracted by SPME. A total of 80 volatiles was sensorially perceived and/or detected in the chromatog. effluent, of which 65 were identified, 44 presented some odor, and 36 were odorless. Among the odorous compounds, 15 were not detected by GC-FID or GC-MS. This study confirmed the compound 2-acetyl-1-pyrroline as the impacting volatile compound to the aroma of aromatic rice since it presented a very low percentage of area in the chromatogram and a high odor intensity. Other 43 compounds presented odor in lower intensities, but also contributed to the overall aroma of IAC 500 rice. From the 11 aromatic notes mentioned by the trained panel (cooked vegetable/seed, corn, hominy, green, porridge, popcorn, fresh baked cake/bread, milk, caramel, tapioca flour and flower), eight were related to the volatile compounds responsible for their aroma. And 4-tert-Amylphenol (cas: 80-46-6) was used in the research process.

4-tert-acylphenol (cas:80-46-6) contains hydroxyl group.Some low molecular weight alcohols of industrial importance are produced by the addition of water to alkenes. Ethanol, isopropanol, 2-butanol, and tert-butanol are produced by this general method. Application In Synthesis of 4-tert-Amylphenol

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《Certain High Production Volume Chemicals; Test Rule and Significant New Use Rule; Fourth Group of Chemicals》 was published in 2011. The article was appeared in 《Federal Register》. The authors have made some progress in their research.

EPA is proposing to issue a test rule under Toxic Substances Control Act (TSCA) section 4(a)(1)(B) to require manufacturers and processors of 23 high production volume (HPV) chem. substances to develop screening-level health, environmental, and fate data based on the potential for substantial exposures of workers and consumers to these chems. EPA is also proposing to issue simultaneously a significant new use rule (SNUR) for another 22 HPV chem. substances under tSCA section 5(a)(2). The SNUR would require persons to file a significant new use notice (SNUN) with EPA prior to manufacturing, importing, or processing any of these chem. substances for use in a consumer product or for any use, or combination of uses, that is reasonably likely to exposure 1,000 or more workers at a single corporate entity. The required notification would provide EPA with the opportunity to evaluate the intended use and, if necessary, to prohibit or limit that activity before it occurs. EPA is also soliciting comment on a number of issues with regard to both the test rule and the SNUR. The experimental procedure involved many compounds, such as 2,5-Dimethyl-2,5-hexanediol (cas: 110-03-2) .

2,5-Dimethyl-2,5-hexanediol(cas:110-03-2) on heteropoly acid catalyzed dehydration yields cyclic ethers via stereospecific intramolecular SN2 mechanism. It reacts with nitriles in concentrated sulfuric acid to yield Δ1-pyrrolines.Safety of 2,5-Dimethyl-2,5-hexanediol

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Jiang, Haifeng;Liu, Haipeng;Liu, Baolin;Zhang, Yu;Li, Shu;Chen, Jie published 《Effect of Cellulose-Lignin Interactions on Catalytic Pyrolysis over Formate Salt Catalysts》 in 2021. The article was appeared in 《ACS Sustainable Chemistry & Engineering》. They have made some progress in their research.HPLC of Formula: 119-47-1 The article mentions the following:

This work studied the effect of cellulose-lignin interactions under potassium formate (HCOOK) and nickel formate (Ni(HCOO)₂) on behavior and product distributions. The results indicated that the presence of HCOOK affected the whole thermal decomposition process, while the effect of Ni(HCOO)₂ was mainly manifested before 339°C. The interaction under the action of HCOOK favored the generation of carbonyl compounds, and the catalytic pyrolysis with Ni(HCOO)₂ was better for formating phenols. The high peak intensities of CO and CH₄ were achieved by adding nickel formate and potassium formate, resp. It was obviously different from noncatalytic pyrolysis. The evolution of a char structure further revealed that different formate salts had different effects on the interactions. The statistical method according to the distribution of the liquid component confirmed that HCOOK had the strongest effect for reducing the cellulose-lignin interactions. To complete the study, the researchers used 2,2-Methylenebis(6-tert-butyl-p-cresol) (cas: 119-47-1) .

HPLC of Formula: 119-47-12,2′-Methylenebis(4-methyl-6-tert-butylphenol)(CAS: 119-47-1) is a natural product found in Streptomyces and Aspergillus fumigatus .

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Product Details of 2425-77-6《Essential oil obtained from Thlaspi arvense L. leaves and seeds using microwave-assisted hydrodistillation and extraction in situ by vegetable oil and its antifungal activity against Penicillium expansum》 was published in 2022. The authors were Zhao, Ru;Ben, Ailing;Wei, Mengxia;Ruan, Ming;Gu, Huiyan;Yang, Lei, and the article was included in《LWT–Food Science and Technology》. The author mentioned the following in the article:

An improved approach was developed to obtain essential oil from Thlaspi arvense L. leaves (TAL) and seeds (TAS) using microwave-assisted hydrodistillation and extraction in situ by vegetable oil. Some potential parameters that affected the yield of essential oils were systematically investigated. Under the obtained optimization conditions, the maximized yields of TAL and TAS essential oils were 0.77 ± 0.02 mg/g and 2.69 ± 0.08 mg/g, resp. The results analyzed by GC-MS revealed that the main component of TAS essential oil was allyl isothiocyanate (AITC), which accounted for 44.69% of the total essential oil content. The proportion of AITC in TAL essential oil, however, was only 9.66%. Results showed that they all had significant inhibition on P. expansum, with AITC exhibiting the greatest inhibition on P. expansum. The study of antifungal activity indicates that AITC has potential application value and broad application prospects in food preservation-related fields in the future.2-Hexyl-1-decanol (cas: 2425-77-6) were involved in the experimental procedure.

2-Hexyl-1-decanol(cas: 2425-77-6) may be employed as an organic solvent to study the extraction of non-polar acidic drugs from human plasma by parallel artificial liquid membrane extraction (PALME). Product Details of 2425-77-6

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LaBrecque, G. C.;Gouck, H. K. published 《Compounds affecting fertility in adult houseflies》. The research results were published in《Journal of Economic Entomology》 in 1963.Computed Properties of C8H12ClNO2 The article conveys some information:

Of 1100 compounds that were tested, 20 caused sterility in adult Musca domestica when given in the food. P,P-Bis(1-aziridinyl)-N-(p-methoxyphenyl)phosphinic amide, 5-fluoroorotic acid, and 1,4-piperazinediylbis[bis(1-aziridinyl)phosphinic oxide] induced sterility without apparent toxic effect over the broadest range of concentrations, from 5% to 0.1% or 0.25%. The experimental procedure involved many compounds, such as 5-(hydroxymethyl)-2,4-dimethylpyridin-3-ol hydrochloride (cas: 148-51-6) .

5-(hydroxymethyl)-2,4-dimethylpyridin-3-ol hydrochloride(cas:148-51-6 Computed Properties of C8H12ClNO2) is a strong antagonist of vitamin B6. Deoxypyridoxine hydrochloride has been used as an analytical reference standard for the quantification of the analyte in food samples using high performance liquid chromatography.

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Related Products of 119-47-1In 2021, Sicar, Milica Rankov;Micic, Radoslav;Tomic, Milan;Durisic-Mladenovic, Natasa published 《Efficiency of different additives in the improvement of the oxidation stability of fatty acid methyl esters with different properties》. 《Journal of the Serbian Chemical Society》published the findings. The article contains the following contents:

This study evaluates six formulations in improving the oxidation stability of different fatty acid Me esters (MEs). Two MEs differed in the unsaturation levels as they were synthesized from different feedstock: a blend of soybean and sunflower oils, and waste cooking oil; they did not fulfill the requirements of the EN 14214 standard concerning their oxidation stability (≈0.6 h) and some impurities. The third MEs (SoSuME-EN) were fully compliant with the standard Five formulations were phenolic-based, containing single or mixed antioxidant compounds of different mol. structures; one was amine-based. Different dosages of the formulations were added to the ME samples (corresponding to the addition range 50-48300 ppm). The MEs stability expressed as induction periods, IP, determined by the Rancimat method, were used for the calculation of stabilization factors, SF, indicating the efficiency of the applied formulation. The formulation containing 2-(1,1-dimethyl-ethyl)-1,4-benzenediol was the most efficient concerning the lowest consumption rate and the highest SF achieved for the low quality ME. 2,2′-Methylene-bis-(4-methyl-6-tert-butylphenol) was linked with higher antioxidant potency than the amine-based formulation and the phenolic compounds with two bulky tert-Bu groups. Among the 4 selected phenolic additives, butylated hydroxytoluene and 2,2′-methylene-bis-(4-methyl-6-tert-butylphenol) had similar efficiency in SoSuME-EN (at ≈500 ppm they produced SF ≈ 2), while it took twice of this amount for mixed butylphenols to achieve the same effect. The experimental procedure involved many compounds, such as 2,2-Methylenebis(6-tert-butyl-p-cresol) (cas: 119-47-1) .

Related Products of 119-47-12,2′-Methylenebis(4-methyl-6-tert-butylphenol)(CAS: 119-47-1) is a natural product found in Streptomyces and Aspergillus fumigatus .

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Yamamoto, Daisuke;Soga, Masayuki;Ansai, Hiromasa;Makino, Kazuishi published 《Manganese-catalysed hydroperoxidation of carbon-carbon double bonds using molecular oxygen present in air and hydroxylamine under ambient conditions》. The research results were published in《Organic Chemistry Frontiers》 in 2016.Recommanded Product: rel-(1R,2S)-1,2-Diphenylethane-1,2-diol The article conveys some information:

A highly efficient manganese-catalyzed hydroperoxidn. of carbon-carbon double bonds of enynes as well as styrene derivatives using N-hydroxyphthalimide, N-hydroxybenzotriazole or N-hydroxysuccinimide was developed. This reaction proceeded at room temperature through the direct incorporation of mol. oxygen present in air. The required catalytic loading of manganese(III) acetylacetonate was extremely low (generally 0.02-0.5 mol%, and a min. of 0.001 mol%). The experimental procedure involved many compounds, such as rel-(1R,2S)-1,2-Diphenylethane-1,2-diol (cas: 579-43-1) .

rel-(1R,2S)-1,2-Diphenylethane-1,2-diol(cas: 579-43-1 Recommanded Product: rel-(1R,2S)-1,2-Diphenylethane-1,2-diol) has been used in the preparation of trans-methyl meso-hydrobenzoin phosphite.

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Bogacki, Jan;Marcinowski, Piotr;Bury, Dominika;Krupa, Monika;Sciezynska, Dominika;Prabhu, Prasanth published 《Magnetite, hematite and zero-valent iron as co-catalysts in advanced oxidation processes application for cosmetic wastewater treatment》. The research results were published in《Catalysts》 in 2021.Quality Control of 3,7-Dimethyloctan-3-ol The article conveys some information:

There is a need for more effective methods of industrial wastewater treatment. Cosmetic wastewater was collected and subjected to H₂O₂/Fe₃O₄/Fe₂O₃/Fe⁰ and UV/H₂O₂/Fe₃O₄/Fe₂O₃/Fe⁰ process treatment. Total organic carbon (TOC) was decreased from an initial 306.3 to 134.1 mg/L, 56.2% TOC removal, after 120 min of treatment for 1:1 H₂O₂/COD mass ratio and 500/500/1000 mg/L Fe₃O₄/Fe₂O₃/Fe⁰ catalyst doses. The application chromatog. anal. allowed for the detection and identification of pollutants present in the wastewater. Identified pollutants were removed during the treatment processes. Processes carried out at a pH greater than 3.0 were ineffective. The UV process was more effective than the lightless process. The applied processes are effective methods for wastewater treatment. Chromatog. results confirmed the effectiveness of the treatment method. The kinetics of the process were described by the modified second-order model. On the basis of ANOVA results, the hypothesis regarding the accuracy and reproducibility of the research was confirmed. To complete the study, the researchers used 3,7-Dimethyloctan-3-ol (cas: 78-69-3) .

3,7-Dimethyloctan-3-ol(cas:78-69-3) is a fatty alcohol that is 3-octanol substituted by methyl groups at positions 3 and 7.Quality Control of 3,7-Dimethyloctan-3-ol Metabolite observed in cancer metabolism. It has a role as a human metabolite.

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Giamaki, Despoina;Dindini, Konstantina;Samanidou, Victoria F.;Touraki, Maria published 《Simultaneous Quantification of Bisphenol-A and 4-Tert-Octylphenol in the Live Aquaculture Feed Artemia franciscana and in Its Culture Medium Using HPLC-DAD》 in 2022. The article was appeared in 《Methods and Protocols》. They have made some progress in their research.COA of Formula: C14H22O The article mentions the following:

Aquaculture, a mass supplier of seafood, relies on plastic materials that may contain the endocrine disruptors bisphenol-A (BPA) and tert-octylphenol (t-OCT). These pollutants present toxicity to Artemia, the live aquaculture feed, and are transferred through it to the larval stages of the cultured organisms. The purpose of this work is the development and validation of an anal. method to determine BPA and t-OCT in Artemia and their culture medium, using n-octylphenol as the internal standard Extraction of the samples was performed with H2O/TFA (0.08%)-methanol (3:1), followed by SPE. Anal. was performed in a Nucleosil column with mobile phases A (95:5, volume/volume, 0.1% TFA in H2O:CH3CN) and B (5:95, volume/volume, 0.08% TFA in H2O:CH3CN). Calibration curves were constructed in the range of concentrations expected following a 24 h administration of BPA (10 μg/mL) or t-OCT (0.5 μg/mL), below their resp. LC50. At the end of exposure to the pollutants, their total levels appeared reduced by about 32% for BPA and 35% for t-OCT, and this reduction could not be accounted for by photodegradation (9-19%). The developed method was validated in terms of linearity, accuracy, and precision, demonstrating the uptake of BPA and t-OCT in Artemia. And 4-tert-Octylphenol (cas: 140-66-9) was used in the research process.

4-tert-Octylphenol(cas: 140-66-9) is a common environmental pollutant showing weak estrogenic effects.COA of Formula: C14H22O It has been shown to cause harm to vertebrate male reproductive systems.

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Islam, Rafiquel;Melvin, Steven D.;Kit Yu, Richard Man;O’Connor, Wayne A.;Anh Tran, Thi Kim;Andrew-Priestley, Megan;Leusch, Frederic D. L.;MacFarlane, Geoff R. published 《Estrogenic mixtures induce alterations in lipidomic profiles in the gonads of female oysters》. The research results were published in《Chemosphere》 in 2022.Computed Properties of C14H22O The article conveys some information:

This study aimed to reveal possible alterations to lipidomic profiles in Sydney rock oysters, Saccostrea glomerata, exposed to estrogenic mixtures (i.e., estrone, E1; 17β-estradiol, E2; estriol, E3; 17α-ethinylestradiol, EE2; bisphenol A, BPA; 4-t-octylphenol, 4-t-OP; and 4-nonylphenol, 4-NP) at “low” and “high” concentrations, typical of those detected in Australian and global receiving waters. A seven-day acute exposure window exhibited significantly lower abundances of many non-polar metabolites in digestive gland, gills, and gonads. Overall, there was a strong effect of the carrier solvent ethanol (despite a low exposure of 0.0002%), with all solvent containing treatments exhibiting lower abundances of lipidic metabolites, especially in the gill and digestive gland. No significant changes of the lipidome were exhibited in the male gonad by estrogenic exposure. However, in the female gonad, significant reductions of phospholipids and phosphatidylcholine were associated with exposure to high estrogenic mixtures We hypothesise that the decreases in these phospholipids in the female gonad may be attributable to (1) lower algal consumption and thus lower uptake of lipidic building blocks; (2) a reduction of available substrates for phospholipid and phosphatidylcholine synthesis; and/or (3) induction of reactive oxygen species via estrogen metabolism, which may cause lipid peroxidation and lower abundance of phospholipids. The experimental procedure involved many compounds, such as 4-tert-Octylphenol (cas: 140-66-9) .

4-tert-Octylphenol(cas: 140-66-9) has been used as a reference standard for the determination of the analyte in water samples using ultra-high-performance liquid chromatography/tandem mass spectrometry (UHPLC/MS/MS).Computed Properties of C14H22O

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