Author: tianli

Dai, Yuxuan published the artcilePhotocatalytic degradation mechanism of phenanthrene over visible light driven plasmonic Ag/Ag₃PO₄/g-C₃N₄ heterojunction nanocomposite, Related Products of alcohols-buliding-blocks, the publication is Chemosphere (2022), 133575, database is CAplus and MEDLINE.

Visible light driven plasmonic Ag/Ag₃PO₄/g-C₃N₄ heterojunction nanocomposite with regular morphol. was prepared via a modified facile method. The two-dimensional ultrathin g-C₃N₄ nanosheet is uniformly wrapped on the surface of Ag₃PO₄ nanopolyhedron. A charge transfer bridge was built between Ag₃PO₄ nanopolyhedron and g-C₃N₄ nanosheet due to the reduction of Ag nanoparticles. This structure can inhibit the recombination of photogenerated electron-hole pairs and promote the transfer of photogenerated carriers, so as to produce more active species for participating in the photocatalytic reaction. In addition, the surface plasmon resonance (SPR) of appropriate Ag nanoparticles enhanced the absorption and utilization of visible light. Compared with Ag₃PO₄ and Ag/Ag₃PO₄, Ag/Ag₃PO₄/g-C₃N₄ showed higher photocatalytic activity. Under visible light irradiation, the degradation rate of phenanthrene (PHE) was 0.01756 min^-1, which was 3.14 times and 2.38 times that of Ag₃PO₄ and Ag/Ag₃PO₄, resp. After four cycles of photocatalytic reaction, the Ag/Ag₃PO₄ /g-C₃N₄ photocatalyst still maintained high photocatalytic activity. The active sites of PHE were predicted by Gaussian simulation calculation and combined with intermediate products identification of GC-MS, the possible degradation pathway of PHE was speculated. This research has reference significance for the construction of plasmonic heterojunction photocatalyst in the field of environmental pollution remediation.

Chemosphere published new progress about 90-64-2. 90-64-2 belongs to alcohols-buliding-blocks, auxiliary class Carboxylic acid,Benzene,Alcohol,Natural product, name is 2-Hydroxy-2-phenylacetic acid, and the molecular formula is C8H8O3, Related Products of alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Ao, Junjie published the artcilePatterns of environmental exposure to phenols in couples who plan to become pregnant, Category: alcohols-buliding-blocks, the publication is Science of the Total Environment (2022), 153520, database is CAplus and MEDLINE.

Phenols are widely used in consumer products and known for their reproductive toxicities. Little is known regarding the environmental exposure to phenols in couples prior to conception, a key period affecting fertility. We measured the urinary concentrations of six parabens and seven bisphenols in 903 pre-conception couples in China. We investigated the occurrence, distribution, source and health risk of phenols in husbands and wives sep., and the correlation and difference in phenol concentrations between couples. Similar distribution profiles of urinary phenols were observed between females and males. Me 4-hydroxybenzoate (MeP) and bisphenol A (BPA) were the predominant compounds The level of urinary phenols in our population was mostly lower than the global levels. Exposure to phenols was linked to processed food and personal care products. The correlations between phenols in males and females were moderate (0.218-0.686), while the correlation in phenols between husband and wife was low (0.009-0.215). Female had a significantly higher urinary phenol levels than male (P < 0.05). Urinary phenols in couples were associated with family income, type of drinking water and frequency of household cleaning. Household factors accounted for ≤1.5% of variance in phenol levels between couples, suggesting that individual variations may be the major factor. Risk assessment showed that exposure to phenols posed a low hazard to 17.5% of the couples in our population. Our findings provide important evidence of environmental exposure to phenols in couples of child-bearing age.

Science of the Total Environment published new progress about 80-09-1. 80-09-1 belongs to alcohols-buliding-blocks, auxiliary class Ploymers, name is 4,4′-Sulfonyldiphenol, and the molecular formula is C12H10O4S, Category: alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Aimuzi, Ruxianguli published the artcileExposure to phthalates, phenols, and parabens mixture and alterations in sex steroid hormones among adolescents, Recommanded Product: 4,4′-Sulfonyldiphenol, the publication is Chemosphere (2022), 134834, database is CAplus and MEDLINE.

Exposure to phthalates (PAEs), phenols, and parabens has been linked with sex hormone imbalance; however, previous studies were predominantly limited to adults and failed to examine the combined effects of these chems. mixture among adolescents. Thus, we used the data from the National Health and Nutrition Examination Survey (2013-2016) to explore the associations of urinary PAEs, phenols, and parabens biomarkers with sex hormones among participants aged 12-19 years old (n = 613). Latent class anal. (LCA) and quantile-based g-computation (QGC) were applied to assess the associations of the latent exposure profiles and chems. mixture with sex hormone indicators, including steroid hormones and sex hormone binding globulin (SHBG), in adolescents and by sex. Using LCA, four latent classes were identified among all participants. Compared with the class characterized by “Low exposure”, the class represented by “High PAEs” [mono (2-ethyl-5-carboxypentyl) phthalate (MECPP), mono (2-ethyl-5-hydroxyhexyl) phthalate (MEHHP), and monobenzyl phthalate (MBZP)] had lower level of estradiol (E2) [β = -0.249, 95% confidence interval (CI): -0.419, -0.08], free androgen index (FAI) (β = -0.258, 95%CI: -0.512, -0.005) and free testosterone (FT) (β = -0.248, 95%CI: -0.496, -0.001) among male adolescents. These results were echoed by the results in QGC analyses, where PAEs mixture was neg. associated with E2 (β = -0.137, 95% CI: -0.263, -0.011), FAI (β = -0.198, 95%CI: -0.387, -0.008) and FT (β = -0.189, 95%CI: -0.375, -0.002) among male adolescents. By contrast, the associations of the identified latent classes or chems. mixture with sex hormone indicators were generally nonsignificant among female counterparts, except for a pos. association between PAEs mixture and SHBG (β = 0.121, 95%CI: 0.012, 0.23). Our study demonstrated that exposure to PAEs, particularly MECPP, MEHHP, and MBZP, would be a threat to the sex hormone homeostasis of male adolescents.

Chemosphere published new progress about 80-09-1. 80-09-1 belongs to alcohols-buliding-blocks, auxiliary class Ploymers, name is 4,4′-Sulfonyldiphenol, and the molecular formula is C12H10O4S, Recommanded Product: 4,4′-Sulfonyldiphenol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Li, Xingyu published the artcilePhase Splitting Rules of the Primary/Secondary Amine-Tertiary Amine Systems: Experimental Rapid Screening and Corrected Quasi-Activity Coefficient Model, Category: alcohols-buliding-blocks, the publication is Industrial & Engineering Chemistry Research (2022), 61(23), 7709-7717, database is CAplus.

Several phase splitting systems have shown potential in reducing regeneration energy consumption for large-scale CO₂ capture in the last decade. The development of new phase splitting systems currently depends on exptl. screening. In this work, 90 sets of primary/secondary amine-tertiary amine anhydrous systems and 160 sets of primary/secondary amine-tertiary amine-water systems were used to investigate the phase splitting rules at the mol. level. The results show that the phase splitting behavior of the anhydrous system is directly affected by the carbamate solubility in the tertiary amine. The potential phase splitting system has a tertiary amine with proper lipophilicity. Among the aqueous systems, two different phase splitting zones were recognized: the salting-out effect zone with a lower amine log P and the cosolvent effect zone with a higher amine log P. Several thermotropic phase splitting systems are located at the edge of these two zones. The tertiary amine with more tert-amine groups and less hydroxyl groups would facilitate phase splitting. The primary/secondary amine with hydroxyl groups on the straight chain would facilitate phase splitting. A new parameter describing the primary amine/secondary amine as a nonelectrolyte is introduced to develop a new quasi-activity coefficient of the chem.-chem. aqueous system. This quasi-activity coefficient is applicable to the mono- or polyamine systems with different material ratios.

Industrial & Engineering Chemistry Research published new progress about 96-20-8. 96-20-8 belongs to alcohols-buliding-blocks, auxiliary class Amine,Aliphatic hydrocarbon chain,Alcohol, name is 2-Aminobutan-1-ol, and the molecular formula is C4H11NO, Category: alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Shen, Jiazhi published the artcileMetabolite profiling of tea (Camellia sinensis L.) leaves in winter., COA of Formula: C6H10O7, the publication is Scientia Horticulturae (Amsterdam, Netherlands) (2015), 1-9, database is CAplus.

Tea (Camellia sinensis L.) is a thermophilic evergreen woody perennial. It is poor in cold tolerance during winter. Changes occurred at metabolite level in low temperatures were poorly understood in tea plants. In this study, Metabolite profiling of tea leaves was performed to investigate the responses of tea plants to different cold conditions by using gas chromatog.-mass spectrometry (GC-MS) and multivariate anal. A total of 105 metabolites were identified. Principal component anal. (PCA) revealed that the tea leaves in plastic greenhouse (DP) and natural condition (OA) were clearly separated by their sampling times and growth conditions. The levels of changed metabolites could be organized in four clusters by hierarchical clustering anal. (HCA). According to the pathway, raffinose, maltose, glucose and fructose derived from the hydrolysis of sucrose were all more abundant in leaves of OA than those of DP. Despite temperature fluctuation, leucine, valine, threonine, alanine were all in higher level in leaves of DP than those of OA except Nov. 16. Citric acid, fumaric acid and malic acid were in higher level under the higher temperature in DP. Shikimic acid and quinic acid presented an absolutely distinct metabolism pattern. Shikimic acid was neg. correlated with quinic acid in both treatments except Mar. 16. They were at high level on Nov. 16, and then decreased sharply in the following periods in both treatments during the experiment The results indicated that the different low temperatures had significantly different effects on tea plants and could change their metabolic pathways in different ways. These might be helpful to understand the mechanism of cold resistance of tea plants at the metabolite level and to facilitate the future research on gene and protein expression in tea plants of DP and OA in winter.

Scientia Horticulturae (Amsterdam, Netherlands) published new progress about 526-98-7. 526-98-7 belongs to alcohols-buliding-blocks, auxiliary class Sugar Units,Other Sugar Units, name is (3S,4R,5S)-3,4,5,6-Tetrahydroxy-2-oxohexanoic acid, and the molecular formula is C15H14BNO4S, COA of Formula: C6H10O7.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Kim, Dongjoo published the artcileHealth-beneficial aroma and taste compounds in a newly developed kombucha using a Huanglongbing-tolerant mandarin hybrid, SDS of cas: 106-25-2, the publication is Journal of Food Science (2022), 87(6), 2595-2615, database is CAplus and MEDLINE.

Huanglongbing (HLB) is a destructive citrus greening disease; no com. applicable measures exist. ‘LB8-9’ Sugar Belle (SB), originally developed for the fresh market, is the most HLB-tolerant cultivar among com. available varieties. Due to the limited capacity of the fresh fruit market, there is a need to increase the demand for SB juice. Kombucha is a fermented tea beverage with black tea and sugar, and is considered a healthy drink with an increasing market. Therefore, we aim to study the potential of using SB juice in kombucha production Regular (black tea with no citrus juice added), Hamlin (black tea with Hamlin juice added), and SB kombucha (black tea with SB juice added) were prepared and analyzed to observe the composition of aroma and taste compounds in the kombuchas. Aroma and taste compounds in the kombuchas were analyzed using gas chromatog.-mass spectrometry/olfactometry and liquid chromatog.-triple quadrupole mass spectrometry, resp. For aroma compounds, SB kombucha was characterized by high concentrations of terpenes and their derivatives, which have mandarinlike aroma characteristics and health benefits such as antidiabetic and antioxidant effects. For taste compounds, SB kombucha contained higher amount of fructose and organic acids, which have the potential to increase the intensity of sweetness and sourness, and flavonoids. This would support the potential benefits of using SB to make kombucha. This study provides valuable information about the aroma and taste compounds in SB kombucha and its potential health benefits, compared with regular and Hamlin kombucha.

Journal of Food Science published new progress about 106-25-2. 106-25-2 belongs to alcohols-buliding-blocks, auxiliary class Natural product, name is cis-3,7-Dimethyl-2,6-Octadien-1-Ol, and the molecular formula is C10H18O, SDS of cas: 106-25-2.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Dong, Li published the artcileStudy on the application timing of tromethamine in cesarean section of patients with central placenta previa, Computed Properties of 58551-69-2, the publication is Zhongguo Fuyou Baojian (2016), 31(18), 3701-3703, database is CAplus.

Objective To explore the application timing of tromethamine in cesarean section of patients with central placenta previa. Methods Sixty-four women underwent cesarean section in Department of Obstetrics and Gynecol. in the hospital from Jan. 2013 to Dec. 2014, then they were diagnosed as central placenta previa and divided into observation group and control group based on random number table according to the sequence of admission, 32 women in each group. The patients in observation group were treated by tromethamine immediately after delivery of fetus, while the patients in control group were treated by tromethamine after delivery of placenta. The numbers of automatic placental expulsion, the numbers of manual removal of placenta, operation time, and the amounts of blood loss during operation in the two groups were compared. Results The amounts of blood loss during operation and at two hours after operation in observation group were statistically significantly less than those in control group (P<0.01). There was no statistically significant difference in the amount of blood loss within 24 h after operation between the two groups (P>0.05). The rate of automatic placental expulsion in observation group was statistically significantly higher than that in control group, while the rate of manual removal of placenta in observation group was statistically significantly lower than that in control group (P<0.01). The operation time in observation group was statistically significantly shorter than that in control group (P<0.01). Six patients in observation group were treated by uterine gauze, while fourteen patients in control group were treated by uterine gauze, there was statistically significant difference between the two groups (P<0.01). The rates of intraoperative and postoperative blood transfusion in observation group and control group were 15.6% and 37.5%, resp., there was statistically significant difference between the two groups (P<0.01). There was no statistically significant difference in the incidence rate of adverse reactions between the two groups (P>0.05). Conclusion Uterine body injection of tromethamine immediately after delivery of fetus during cesarean section of patients with central placenta previa can quickly promote lower segment uterine contraction, improve placental delivery rate, reduce the amount of blood loss during operation, shorten operation time, the adverse reactions are few, but the price is expensive, so it can be used as obstetric emergency medication or preventive medication of high risk pregnant women.

Zhongguo Fuyou Baojian published new progress about 58551-69-2. 58551-69-2 belongs to alcohols-buliding-blocks, auxiliary class Chiral,Alkenyl,Amine,Aliphatic cyclic hydrocarbon,Ester,Alcohol,Inhibitor,, name is 2-Amino-2-(hydroxymethyl)propane-1,3-diol (Z)-7-((1R,2R,3R,5S)-3,5-dihydroxy-2-((S,E)-3-hydroxy-3-methyloct-1-en-1-yl)cyclopentyl)hept-5-enoic acid, and the molecular formula is C25H47NO8, Computed Properties of 58551-69-2.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Pang, Yue-Hong published the artcileCovalent organic framework modified carbon cloth for ratiometric electrochemical sensing of bisphenol A and S, HPLC of Formula: 80-09-1, the publication is Microchimica Acta (2022), 189(5), 189, database is CAplus and MEDLINE.

A novel ratiometric electrochem. sensor was developed based on a carbon cloth electrodeposited with silver nanoparticles and drop-coated by covalent organic framework (COF-LZU1) for simultaneous determination of bisphenol A (BPA) and bisphenol S (BPS). Carbon cloth exhibited a significantly larger electrochem. active area than common glassy carbon electrodes (27.5 times). Silver nanoparticles not only provided a stable reference signal but also enhanced electroactivity for the oxidation of BPA and BPS. COF-LZU1 with good adsorption performance and large periodic π-arrays promoted the enrichment of BPA and BPS to further increase the current response. Compared with the traditional single-signal electrochem. sensor, the developed ratiometric sensor exhibited better reproducibility and a wider linear range for BPA and BPS from 0.5 to 100μM with a limit of detection of 0.15μM. Furthermore, the developed sensor showed excellent stability and superior anti-interference ability. The real sample anal. for BPA and BPS has been successfully carried out in mineral water, electrolyte drink, tea, juice, and beer with recoveries of 88.3-111.7%. The developed ratiometric sensor is expected to be a candidate for the preparation of other electrochem. sensors and the anal. of addnl. practical samples.

Microchimica Acta published new progress about 80-09-1. 80-09-1 belongs to alcohols-buliding-blocks, auxiliary class Ploymers, name is 4,4′-Sulfonyldiphenol, and the molecular formula is C12H10O4S, HPLC of Formula: 80-09-1.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Zhang, Yanmei published the artcileIdentification and synthesis of low-molecular weight cholecystokinin B receptor (CCKBR) agonists as mediators of long-term synaptic potentiation, Safety of 2-Hydroxy-4-(trifluoromethyl)benzoic acid, the publication is Medicinal Chemistry Research (2019), 28(3), 387-393, database is CAplus.

Recently, He et al. reported that CCKB receptors located in the neocortex of the brain when bound to their bound natural ligand, CCK peptides, enhance memory, bringing up the possibility that agonists targeting the CCKB receptor may act as therapeutic agents in diseases in which memory loss is marked as observed in dementia and Alzheimer’s. In this report, we describe the synthesis of novel low-mol. weight benzoamine CCKB receptor agonists. The compounds made in this series were determined to be mostly partial agonists, although some antagonists were identified, as well, capable of triggering calcium release in a cell line that overexpresses the CCKB receptor. Compound 35 demonstrated an EC₅₀ of 0.15 μM in the cell-based assay, but more importantly, several of the compounds, including 35, demonstrated a physiol. effect, inducing long-term potentiation in rat brains comparable to the CCK-8 peptide albeit at much higher concentrations Based on these findings, benzoamines may be the basis for a new series of CCKB receptor agonists in drug-discovery efforts that seek to develop therapeutics to prevent memory loss.

Medicinal Chemistry Research published new progress about 328-90-5. 328-90-5 belongs to alcohols-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Carboxylic acid,Benzene,Phenol, name is 2-Hydroxy-4-(trifluoromethyl)benzoic acid, and the molecular formula is C9H9BO2, Safety of 2-Hydroxy-4-(trifluoromethyl)benzoic acid.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Yamaguchi, Kazuya published the artcileHeterogeneously Catalyzed Aerobic Cross-Dehydrogenative Coupling of Terminal Alkynes and Monohydrosilanes by Gold Supported on OMS-2, Category: alcohols-buliding-blocks, the publication is Angewandte Chemie, International Edition (2013), 52(21), 5627-5630, database is CAplus and MEDLINE.

Aerobic cross-dehydrogenative coupling of terminal alkynes, e.g., RCCH (R = 1-naphthyl, 4-XC₆H₄, X = Me, F, Br, CF₃, NO₂, NH₂), with monohydrosilanes, e.g., R’₃SiH (R’₃ = Et₃, PhMe₂, iPr₃, tBuMe₂, tBuPh₂, (EtO)₃) gave alkynylsilanes, RCCSiR’₃ in the presence of gold catalyst supported on a cryptomelane-type manganese oxide-based octahedral mol. sieve OMS-2 (Au/OMS-2, average particle size of gold: 4.5 nm).

Angewandte Chemie, International Edition published new progress about 597-52-4. 597-52-4 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic Chain, name is Triethylsilanol, and the molecular formula is C14H12N2S, Category: alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts