Category: alcohols-buliding-blocks

Wong, Shaio Wen published the artcileCatalysis in competing isocyanate reactions, COA of Formula: C7H18N2O, the main research area is phenyl isocyanate butanol esterification kinetics; dipropylenetriamine catalyst isocyanate butanol esterification; organotin catalyst isocyanate butanol esterification; amine catalyst isocyanate butanol esterification.

The effects of various organotin and tertiary amine catalysts on the product distributions in the esterification of Ph isocyanate (I) [103-71-9] with n-BuOH (II) [71-36-3] as model reaction for the preparation of polyurethanes were determined The esterification in the presence of N,N,N’,N’,N”-pentamethyldipropylenetriamine (III) [66537-05-1] catalyst in MeCN at 50° was first order with respect to I and III concentrations and half order with respect to II concentration with an apparent activation energy of 22.9 kcal/mol. Tri-Ph isocyanurate (IV) [1785-02-0], Bu phenylcarbamate  [1538-74-5], and Bu α,γ-diphenylallophanate  [21367-12-4] were formed by the reaction with IV being the major reaction product. The presence of H2O delayed the reaction rate and inhibited the formation of IV.

Polimeri (Zagreb, Croatia) published new progress about Cyclization. 2212-32-0 belongs to class alcohols-buliding-blocks, name is N2-(2-Hydroxyethyl)-N1,N1,N2-trimethyl-1,2-ethylenediamine, and the molecular formula is C7H18N2O, COA of Formula: C7H18N2O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Fan, Sanhong published the artcilePurification, structural elucidation and in vivo immunity-enhancing activity of polysaccharides from quinoa (Chenopodium quinoa Willd.) seeds, Name: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is Chenopodium hypersensitivity immunosuppression spleen polysaccharide IFN alpha IgM; Quinoa polysaccharides; immunity; purification; structure.

Quinoa crude polysaccharides (QPS) were extracted from Chenopodium quinoa Willd. The soluble non-starch polysaccharide fraction (QPS1) was subsequently purified by DEAE-52 cellulose and Sephadex G-50 gel chromatog., using QPS as raw materials. Its chem. structure was identified using FT-IR, NMR, AFM, SEM and Congo red staining. High performance gel permeation chromatog. (HPGPC) was used to determine mol. weight, and composition by HPLC. QPS1, with a mol. weight of 34.0 kDa, was mainly composed of mannose, rhamnose, galacturonic acid, glucose, galactose, xylose and arabinose at a molar ratio of 2.63:2.40:1.64:6.28:1.95:2.48:5.01. In addition, we evaluated the ameliorative effects of QPS1 on the improvement of anti-cyclophosphamide (CTX)-induced immunosuppression in ICR mice. The result exhibited significantly immune-enhancing activity: QPS1 successfully improved the content of IFN-γ, IL-6, IFN-α, IgM and lysozyme (LYSO) in serum for three weeks, enhanced the phagocytic function of mononuclear macrophages and ameliorated delayed allergy in mice.

Bioscience, Biotechnology, and Biochemistry published new progress about Blood serum. 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Name: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Saleh, Dalia O. published the artcileEffects of sulforaphane on D-galactose-induced liver aging in rats: Role of keap-1/nrf-2 pathway., Quality Control of 59-23-4, the main research area is sulforaphane antiaging hepatoprotectant hepatic fibrosis aging; Aging; D-galactose; Fibrosis; Nrf-2; Rats; Sulforaphane.

Aging; a biol. phenomenon characterized by progressive decline in cellular functions, is considered as a major risk factor of various liver diseases that plays as an adverse prognostic role, thus increasing mortality rate. However, diet is the main environmental factor that has a major impact on the aging process whereas, sulforaphane (SFN), an isothiocyanate organosulfur compound in cruciferous vegetables, has been reported with myriad biol. effects. In the present study, SFN antiaging properties were evaluated on D-galactose (D-Gal)-induced liver aging in rats. For this purpose, forty adult male Wistar rats were divided into five groups. All animals, except the normal control, were i.p. injected with D-Gal (300 mg/kg/day for 5 days a week) for six consecutive weeks. In the hepatoprotective groups, animals received oral SFN (0.5, 1.0 and 2.0 mg/kg) for 6 wk concurrently with D-GAL. SFN administration improved liver biomarkers through decreasing serum levels of AST, ALT, total and direct bilirubin when compared to D-Gal-aging group. SFN significantly increased hepatic GSH level as well as catalase and glutathione-S-transferase activities while counteracted the elevation in hepatic oxidative stress markers; MDA, NO and protein carbonyl in aged rats. SFN abrogated the dysregulation in hepatic Keap-1, Nrf-2 and HO-1and limited the elevation of TNF-α and TGF-β concentrations in aging liver. Histopathol., SFN decreased the intensity of hepatic fibrous proliferation in D-Gal-induced aging. In conclusion, SFN has shown hepatic anti-aging potential through promoting the antioxidant machinery via regulating Keap-1, Nrf-2 and HO-1 and antioxidant enzyme activities as well as ameliorating oxidative stress, hampering the inflammatory cytokines; TNF-α and TGF-β, and limiting hepatic fibrosis in a dose dependent manner.

European Journal of Pharmacology published new progress about Blood serum. 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Quality Control of 59-23-4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Ahn, Chihyung published the artcileBioinspired Design of Light-Powered Crawling, Squeezing, and Jumping Untethered Soft Robot, Quality Control of 7575-23-7, the main research area is light powered soft robot squeezing crawling jumping.

Light has been recently intensively explored to power robots. However, most existing light-driven robots have limited locomotion modalities, with constrained locomotion capabilities. A light-powered soft robot with a bioinspired design is demonstrated, which can crawl on ground, squeeze its way through a small channel, and jump over a barrier. The arch-shaped robot is made up of liquid crystal elastomer-carbon nanotube composite. When a light source with a power intensity of around 1.57 W cm-2 is scanned over the surface of the robot, it deforms and crawls forward. With an increase in the light scanning speed, it can deform sufficiently to pass through a channel 25% lower than its body height. Subjected to light irradiation, it can also deform to a closed loop, gradually store elastic energy, and suddenly release it to jump over a wall or onto a step quickly, with a jumping distance around eight times its body length and jumping height around five times its body height. Math. models for quant. understanding the multimodal locomotion of this light-powered soft robot are also presented.

Advanced Materials Technologies (Weinheim, Germany) published new progress about Body height. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Quality Control of 7575-23-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Bampidis, Vasileios published the artcileSafety and efficacy of feed additives consisting of expressed lemon oil and its fractions from Citrus limon (L.) Osbeck and of lime oil from Citrus aurantiifolia (Christm.) Swingle for use in all animal species (FEFANA asbl), Recommanded Product: rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol, the main research area is feed additive safety lemon lime oil Citrus limon aurantiifolia; Citrus aurantiifolia (Christm.) Swingle; Citrus limon (L.) Osbeck; component‐based approach; flavouring compounds; furocoumarins; perillaldehyde; sensory additives.

Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of expressed lemon oil and distilled lemon oil from Citrus limon (L.) Osbeck and lime oil from Citrus aurantiifolia (Christm.) Swingle, when used as sensory additives in feed for all animal species. The use of the expressed lemon oil and its residual fraction and the use of lime oil in feed is not expected to increase the exposure to furocoumarins and methoxycoumarins and perillaldehyde of those target species that are already fed citrus byproducts a relevant extent (< 10%). For companion animals and ornamental fish not normally exposed to citrus byproducts, no conclusion can be drawn. For the other species and for the distilled fraction of expressed lemon oil, the FEEDAP Panel concludes that the additives under assessment are safe at the maximum proposed or at reduced use levels in complete feed. The Panel considers that the use in water for drinking is safe provided that the total daily intake of the additive does not exceed the daily amount that is considered safe when consumed via feed. No concerns for consumer safety were identified following the use of the additives at the maximum proposed use level in feed. The additives under assessment should be considered as irritants to skin and eyes and the respiratory tract and as skin sensitizers. Since expressed lemon oil and its fractions contain furocoumarins, they may cause phototoxicity. The use of the additives under the proposed conditions of use in animal feed is not expected to pose a risk for the environment. Since C. limon and C. aurantiifolia and their preparations are recognized to flavor food and its function in feed would be essentially the same as that in food, no further demonstration of efficacy is considered necessary. EFSA Journal published new progress about Body weight. 124-76-5 belongs to class alcohols-buliding-blocks, name is rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol, and the molecular formula is C10H18O, Recommanded Product: rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Mackay, Amy D. published the artcileExercise, but Not Metformin Prevents Loss of Muscle Function Due to Doxorubicin in Mice Using an In Situ Method, Formula: C4H6O5, the main research area is doxorubicin metformin chemotherapy skeletal muscle function mitochondria; chemotherapy; exercise; metformin; mitochondria; muscle contractions; skeletal muscle.

Though effective in treating various types of cancer, the chemotherapeutic doxorubicin (DOX) is associated with skeletal muscle wasting and fatigue. The purpose of this study was to assess muscle function in situ following DOX administration in mice. Furthermore, pre-treatments with exercise (EX) or metformin (MET) were used in an attempt to preserve muscle function following DOX. Mice were assigned to the following groups: control, DOX, DOX + EX, or DOX + MET, and were given a single injection of DOX (15 mg/kg) or saline 3 days prior to sacrifice. Preceding the DOX injection, DOX + EX mice performed 60 min/day of running for 5 days, while DOX + MET mice received 5 daily oral doses of 500 mg/kg MET. Gastrocnemius-plantaris-soleus complex function was assessed in situ via direct stimulation of the sciatic nerve. DOX treatment increased time to half-relaxation following contractions, indicating impaired recovery (p < 0.05). Interestingly, EX prevented any increase in half-relaxation time, while MET did not. An impaired relaxation rate was associated with a reduction in SERCA1 protein content (p = 0.07) and AMPK phosphorylation (p < 0.05). There were no differences between groups in force production or mitochondrial respiration. These results suggest that EX, but not MET may be an effective strategy for the prevention of muscle fatigue following DOX administration in mice. International Journal of Molecular Sciences published new progress about Body weight. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Formula: C4H6O5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Lee, Pearl published the artcileTargeting glutamine metabolism slows soft tissue sarcoma growth, COA of Formula: C4H6O5, the main research area is soft tissue sarcoma glutamine metabolomics sarcomagenesis glutaminase 1.

Abstract: Tumor cells frequently utilize glutamine to meet bioenergetic and biosynthetic demands of rapid cell growth. However, glutamine dependence can be highly variable between in vitro and in vivo settings, based on surrounding microenvironments and complex adaptive responses to glutamine deprivation. Soft tissue sarcomas (STSs) are mesenchymal tumors where cytotoxic chemotherapy remains the primary approach for metastatic or unresectable disease. Therefore, it is critical to identify alternate therapies to improve patient outcomes. Using autochthonous STS murine models and unbiased metabolomics, we demonstrate that glutamine metabolism supports sarcomagenesis. STS subtypes expressing elevated glutaminase (GLS) levels are highly sensitive to glutamine starvation. In contrast to previous studies, treatment of autochthonous tumor-bearing animals with Telaglenastat (CB-839), an orally bioavailable GLS inhibitor, successfully inhibits undifferentiated pleomorphic sarcoma (UPS) tumor growth. We reveal glutamine metabolism as critical for sarcomagenesis, with CB-839 exhibiting potent therapeutic potential.

Nature Communications published new progress about Body weight. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, COA of Formula: C4H6O5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Sidhu, Harmanpreet published the artcileRetention-release of ciprofloxacin and azithromycin in biosolids and biosolids-amended soils, Application In Synthesis of 111-87-5, the main research area is ciprofloxacin azithromycin biosolid amendment soil; Antibiotics; Batch equilibration; Bioaccessibility; Biosolids; DGT.

Ciprofloxacin (CIP) and azithromycin (AZ) are commonly prescribed antibiotics, often found at elevated concentrations in treated sewage sludge (biosolids), and could pose human and ecol. risks when land applied. Limited retention-release data preclude assessing potential risks from the target antibiotics in biosolids and biosolids-amended soils. The present work assessed sorption-desorption of CIP and AZ in biosolids and biosolids-amended soils using the “”traditional”” batch equilibration method. The batch equilibration method also included un-amended soils for comparison. Release potentials of the biosolids-borne antibiotics were assessed via multiple desorption equilibrations in the presence of CaCl2, soils, PbCl2, or competing antibiotic (CIP vs. AZ) solutions Desorption kinetics of CIP from biosolids were also evaluated by the diffusive gradient in thin films technique (DGT), coupled with a diffusion transport-exchange model available in 2D-DIFs. Sorption of both antibiotics followed linear models with partitioning coefficient (Kd) values for CIP ranging between 40 and 334 L kg-1 in soils and 357 L kg-1 in biosolids, and values for AZ ranging between 11 and 202 L kg-1 in soils and 428 L kg-1 in biosolids. Antibiotic desorption from the biosolids was highly hysteretic (hysteresis coefficients < 0.003) and desorption of the biosolids-borne chems. was extremely small (<3%) using any of the various desorption equilibration approaches. Desorption was hysteric in soils too; where desorption percentages were 4, 5, and 26% for CIP and 6, 32, and 50% for AZ in the silt loam soil, manured sand, and sand, resp. CIP release from biosolids determined by DGT was also small (<1%), ascribed to low dissolved and labile concentrations in the solid phase and a small effective diffusion coefficient Results obtained using equilibrium and dynamic approaches suggest that the target antibiotic bioaccessibilities from biosolids and finer-textured (typical agricultural) soils would be minimal and that biosolids (not soils) control desorption of the two biosolids-borne chems. Science of the Total Environment published new progress about Antibiotics. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Application In Synthesis of 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wei, Jianping published the artcileChemical composition, sensorial properties, and aroma-active compounds of ciders fermented with Hanseniaspora osmophila and Torulaspora quercuum in co- and sequential fermentations, Name: n-Octanol, the main research area is aroma compound fermented cider Hanseniaspora Torulaspora; 3-Methyl-1-butanol (PubChem CID: 31260); 3-Methylbutyl acetate (PubChem CID: 31276); Ethyl butanoate (PubChem CID: 7762); Ethyl hexanoate (PubChem CID: 31265); Ethyl octanoate (PubChem CID: 7799); Gas chromatography-olfactometry (GC-O); Glycerol (PubChem CID: 753); Hanseniaspora osmophila; Mixed fermentation; Partial least squares regression (PLSR); Phenylethyl alcohol (PubChem CID: 6054); Torulaspora quercuum; dl-malic acid (PubChem CID: 525); β-Damascenone (PubChem CID: 5366074); β-Phenethyl acetate (PubChem CID: 7654).

In this study, apple juice was fermented using Hanseniaspora osmophila X25-5 in pure culture as well as mixed culture with Torulaspora quercuum X24-4, which was inoculated simultaneously or sequentially. H. osmophila inhibited the growth of T. quercuum, while T. quercuum had little effect on the growth of H. osmophila. The simultaneous fermentation consumed relatively more sugar and resulted in the highest ethanol content. The production of organic acids varied depending on the yeast species employed and inoculation modality. Esters and alcs. were the main volatile families produced during fermentation, while Et esters and terpenes contributed most to the temperate fruity aroma. Gas chromatog.-olfactometry (GC-O) showed that 3-methyl-1-butanol, Et 2-methylbutanoate, phenylethyl alc., β-phenethyl acetate, and β-damascenone were the most potent odorants in all samples. This study suggested that simultaneous fermentation with H. osmophila and T. quercuum might represent a novel strategy for the future production of cider.

Food Chemistry published new progress about Apple juice. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Name: n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhang, Penghan published the artcileOn sample preparation methods for fermented beverage VOCs profiling by GCxGC-TOFMS, Recommanded Product: 3-Pentanol, the main research area is fermented beverage sample preparation VOC profiling GCxGC TOFMS; Fermented beverages; Sample preparation methods; Two dimensional gas chromatography–mass spectrometry; VOC profiling.

Aromas and tastes have crucial influences on the quality of fermented beverages. The determination of aromatic compounds requires global non-targeted profiling of the volatile organic compounds (VOCs) in the beverages. However, exptl. VOC profiling result depends on the chosen VOC collection method. This study aims to observe the impact of using different sample preparation techniques [dynamic headspace (DHS), vortex-assisted liquid-liquid microextraction (VALLME), multiple stir bar sorptive extraction (mSBSE), solid phase extraction (SPE), and solid phase micro-extraction (SPME)] to figure out the most suitable sample preparation protocol for profiling the VOCs from fermented beverages. Five common sample preparation methods were studied with beer, cider, red wine, and white wine samples. After the sample preparation, collected VOCs were analyzed by two-dimensional gas chromatog. coupled with time of flight mass spectrometry (GCxGC-TOFMS). GCxGC oven parameters can be optimized with the Box-Behnken surface response model and response measure on peak dispersion. Due to the unavoidable column and detector saturation during metabolomic anal., errors may happen during mass spectrum construction. Profiling results obtained with different sample preparation methods show considerable variance. Common findings occupy a small fraction of total annotated VOCs. For known fermentative aromas, best coverage can be reached by using SPME together with SPE for beer, and VALLME for wine and cider. GCxGC-TOFMS is a promising tool for non-targeted profiling on VOCs from fermented beverages. However, a proper data processing protocol is lacking for metabolomic anal. Each sample preparation method has a specific profiling spectrum on VOC profiling. The coverage of the VOC metabolome can be improved by combining complementary methods.

Metabolomics published new progress about Apple juice. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Recommanded Product: 3-Pentanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts