Category: 627-93-0

Ghalloo, Bilal Ahmad published the artcilePhytochemical Profiling, In Vitro Biological Activities, and In Silico Molecular Docking Studies of Dracaena reflexa, Quality Control of 627-93-0, the publication is Molecules (2022), 27(3), 913, database is CAplus and MEDLINE.

Dracaena reflexa, a traditionally significant medicinal plant, has not been extensively explored before for its phytochem. and biol. potential. The present study was conducted to evaluate the bioactive phytochems. and in vitro biol. activities of D. reflexa, and perform in silico mol. docking validation of D. reflexa. The bioactive phytochems. were assessed by preliminary phytochem. testing, total bioactive contents, and GC-MS anal. For biol. evaluation, the antioxidant (DPPH, ABTS, CUPRAC, and ABTS), antibacterial, thrombolytic, and enzyme inhibition (tyrosinase and cholinesterase enzymes) potential were determined The highest level of total phenolic contents (92.72 ± 0.79 mg GAE/g extract) was found in the n-butanol fraction while the maximum total flavonoid content (110 ± 0.83 mg QE/g extract) was observed in methanolic extract The results showed that n-butanol fraction exhibited very significant tyrosinase inhibition activity (73.46 ± 0.80) and acetylcholinesterase inhibition activity (64.06 ± 2.65%) as compared to other fractions and comparable to the standard compounds (kojic acid and galantamine). The methanolic extract was considered to have moderate butyrylcholinesterase inhibition activity (50.97 ± 063) as compared to the standard compound galantamine (53.671 ± 0.97%). The GC-MS anal. of the n-hexane fraction resulted in the tentative identification of 120 bioactive phytochems. Furthermore, the major compounds as identified by GC-MS were analyzed using in silico mol. docking studies to determine the binding affinity between the ligands and the enzymes (tyrosinase, acetylcholinesterase, and butyrylcholinesterase enzymes). The results of this study suggest that Dracaena reflexa has unquestionable pharmaceutical importance and it should be further explored for the isolation of secondary metabolites that can be employed for the treatment of different diseases.

Molecules published new progress about 627-93-0. 627-93-0 belongs to esters-buliding-blocks, auxiliary class Ploymers, name is Dimethyl adipate, and the molecular formula is C8H14O4, Quality Control of 627-93-0.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Payne, Jack M. published the artcileVersatile Chemical Recycling Strategies: Value-Added Chemicals from Polyester and Polycarbonate Waste, Related Products of esters-buliding-blocks, the publication is ChemSusChem (2022), 15(8), e202200255, database is CAplus and MEDLINE.

Zn^II-complexes bearing half-salan ligands were exploited in the mild and selective chem. upcycling of various com. polyesters and polycarbonates. Remarkably, we report the first example of discrete metal-mediated poly(bisphenol A carbonate) (BPA-PC) methanolysis being appreciably active at room temperature Indeed, Zn(2)₂ and Zn(2)Et achieved complete BPA-PC consumption within 12-18 mins in 2-Me-THF, noting high bisphenol A (BPA) yields (S_BPA=85-91%) within 2-4 h. Further kinetic anal. found such catalysts to possess k_app values of 0.28±0.040 and 0.47±0.049 min^-1 resp. at 4 wt%, the highest reported to date. A completely circular upcycling approach to plastic waste was demonstrated through the production of several renewable poly(ester-amide)s (PEAs), based on a terephthalamide monomer derived from bottle-grade poly(ethylene terephthalate) (PET), which exhibited excellent thermal properties.

ChemSusChem published new progress about 627-93-0. 627-93-0 belongs to esters-buliding-blocks, auxiliary class Ploymers, name is Dimethyl adipate, and the molecular formula is C8H14O4, Related Products of esters-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Dai, Qianying published the artcileInvestigating volatile compounds’ contributions to the stale odour of green tea, Recommanded Product: Dimethyl adipate, the publication is International Journal of Food Science and Technology (2020), 55(4), 1606-1616, database is CAplus.

Summary : This study aimed to characterize the volatiles that contribute to stale odor of green tea. Volatiles were extracted using headspace solid-phase microextraction (HS-SPME) and analyzed using gas chromatog.-mass spectrometry (GC-MS) and gas chromatog.-olfactometry (GC-O). Results showed that a total of ninety-six volatiles were identified by GC-MS, in which forty-four volatiles were screened out based on Principal component anal. (PCA) and orthogonal projections to latent structures-discriminant anal. (OPLS-DA), and thirty-nine volatiles had a significant variation at the level of 0.05 by anal. of variance (ANOVA). From GC-O anal., fifty-four aromatic volatiles with strong aroma intensity (aroma intensity above 2) were perceived. Further investigation revealed that fifteen volatiles, including 1-octen-3-ol, benzyl alc., benzaldehyde, safranal, β-cyclocitral, (E,E)-3,5-octadien-2-one, (Z,E)-3,5-octadien-2-one, di-Me adipate, dihydroactinidiolide, β-ionone, α-ionone, geranyl acetone, phenylethyl alc., Me decanoate and α-terpineol were responsible for stale odor, besides the former nine compounds were only found in stored tea.

International Journal of Food Science and Technology published new progress about 627-93-0. 627-93-0 belongs to esters-buliding-blocks, auxiliary class Ploymers, name is Dimethyl adipate, and the molecular formula is C8H14O4, Recommanded Product: Dimethyl adipate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Wortman, Sam E. published the artcileA new method for detecting micro-fragments of biodegradable mulch films containing poly(butylene adipate-co-terephthalate) (PBAT) in soil, SDS of cas: 627-93-0, the publication is Journal of Environmental Quality (2022), 51(1), 123-128, database is CAplus and MEDLINE.

Biodegradable mulch (BDM) is a potentially sustainable alternative to polyethylene plastic mulch film for intensive crop production Certified BDMs must demonstrate >90% biodegradation in compost and agricultural soil, but the environmental fate of BDM micro-fragments is usually not measured. While using fatty acid Me ester (FAME) anal. to study changes in soil microbial communities under different BDMs and management conditions, two peaks were detected by gas chromatog. that were derived from a BDM containing poly(butylene adipate-co-terephthalate) (PBAT). The largest peak was identified as 1,4-benzenedicarboxylic acid, di-Me ester, or di-Me terephthalate (DMT). The smaller peak was hexanedioic acid di-Me ester or di-Me adipate. From this observation we hypothesized that the FAME method could be used to detect and quantify micro-fragments (<5 mm in length) of PBAT-containing BDM in soil. To test this, fragments of two com. available BDMs were added to soil and extracted for FAME analyses. Linear relationships were observed between DMT and mulch mass added to soil for both BDMs when the initial mass of fragments was <3.5 mg (r2 > .99). Based on our findings, the FAME method could be redeployed to study the environmental fate and possible accumulation of BDM micro-fragments in soil over time.

Journal of Environmental Quality published new progress about 627-93-0. 627-93-0 belongs to esters-buliding-blocks, auxiliary class Ploymers, name is Dimethyl adipate, and the molecular formula is C8H16O2, SDS of cas: 627-93-0.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Wilke, Olaf published the artcileVolatile organic compounds from building products-Results from six round robin tests with emission test chambers conducted between 2008 and 2018, Name: Dimethyl adipate, the publication is Indoor Air (2021), 31(6), 2049-2057, database is CAplus and MEDLINE.

Emission testing of volatile organic compounds (VOC) from materials and products is commonly based on emission test chamber measurements. To ensure the comparability of results from different testing laboratories, their measurement performance must be verified. For this purpose, Bundesanstalt fuer Materialforschung und -pruefung (BAM) organizes an international proficiency test (round robin test, RRT) every two years using well-characterized test materials (one sealant, one furniture board, and four times a lacquer) with defined VOC emissions. The materials fulfilled the requirements of homogeneity, reproducibility, and stability. Altogether, 36 VOCs were included of which 33 gave test chamber air concentrations between 13 and 83μg/m³. This is the typical concentration range to be expected and to be quantified when performing chamber tests. Three compounds had higher concentrations between 326 and 1105μg/m³. In this paper, the relative standard deviations (RSD) of BAM round robin tests since 2008 are compared and the improvement of the comparability of the emission chamber testing is shown by the decrease of the mean RSD down to 28% in 2018. In contrast, the first large European interlaboratory comparison in 1999 showed a mean RSD of 51%.

Indoor Air published new progress about 627-93-0. 627-93-0 belongs to esters-buliding-blocks, auxiliary class Ploymers, name is Dimethyl adipate, and the molecular formula is C11H10O, Name: Dimethyl adipate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Alaneed, Razan published the artcileConjugation of Amine-Functionalized Polyesters With Dimethylcasein Using Microbial Transglutaminase, Name: Dimethyl adipate, the publication is Journal of Pharmaceutical Sciences (Philadelphia, PA, United States) (2020), 109(2), 981-991, database is CAplus and MEDLINE.

Protein-polymer conjugates have been used as therapeutics because they exhibit frequently higher stability, prolonged in vivo half-life, and lower immunogenicity compared with native proteins. The first part of this report describes the enzymic synthesis of poly(glycerol adipate) (PGA(M)) by transesterification between glycerol and di-Me adipate using lipase B from Candida antarctica. PGA(M) is a hydrophilic, biodegradable but water insoluble polyester. By acylation, PGA(M) is modified with 6-(Fmoc-amino)hexanoic acid and with hydrophilic poly(ethylene glycol) side chains (mPEG12) rendering the polymer highly water soluble This is followed by the removal of protecting groups, fluorenylmethyloxycarbonyl, to generate polyester with primary amine groups, namely PGA(M)-g-NH₂-g-mPEG12. ¹H NMR spectroscopy, FTIR spectroscopy, and gel permeation chromatog. have been used to determine the chem. structure and polydispersity index of PGA(M) before and after modification. In the second part, we discuss the microbial transglutaminase-mediated conjugation of the model protein dimethylcasein with PGA(M)-g-NH₂-g-mPEG12 under mild reaction conditions. SDS-PAGE proves the protein-polyester conjugation.

Journal of Pharmaceutical Sciences (Philadelphia, PA, United States) published new progress about 627-93-0. 627-93-0 belongs to esters-buliding-blocks, auxiliary class Ploymers, name is Dimethyl adipate, and the molecular formula is C8H14O4, Name: Dimethyl adipate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Lin, Hsi-Hsin published the artcileSelective Ammonolysis of Bioderived Esters for Biobased Amide Synthesis, Product Details of C8H14O4, the publication is ACS Omega (2021), 6(44), 30040-30049, database is CAplus and MEDLINE.

Amidation is an important reaction for bioderived platform mols., which can be upgraded for use in applications such as polymers. However, fundamental understanding of the reaction especially in the presence of multiple groups is still lacking. In this study, the amidation of di-Me fumarate, maleate, and succinate through ester ammonolysis was examined The reaction networks and significant side reactions, such as conjugate addition and ring closing, were determined A preliminary kinetic comparison among addnl. C₄ and C₆ esters showed a significant correlation between mol. structure and ammonolysis reactivity. Esters with a C=C double bond in the mol. backbone were found to have higher ammonolysis reactivity. To improve the selectivity to unsaturated amides rather than byproducts, the effects of thermal conditions and additives in di-Me fumarate ammonolysis were examined Lower temperature and decreasing methoxide ion concentration in the solution relative to the base case conditions increased the fumaramide selectivity from 67.1 to 90.6%.

ACS Omega published new progress about 627-93-0. 627-93-0 belongs to esters-buliding-blocks, auxiliary class Ploymers, name is Dimethyl adipate, and the molecular formula is C8H14O4, Product Details of C8H14O4.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Tang, Shuqin published the artcileA Cocktail of Industrial Chemicals in Lipstick and Nail Polish: Profiles and Health Implications, Computed Properties of 627-93-0, the publication is Environmental Science & Technology Letters (2021), 8(9), 760-765, database is CAplus.

Beauty products contain various industrial chems. to increase their functionality and appearance. The frequent use of beauty products may increase human exposure to industrial chems., but to date, their chem. components remain poorly characterized. Our work characterized the chem. components in lipstick and nail polish by screening for a total of 231 chems. from seven categories, including organophosphate esters (OPEs), phthalate esters (PAEs), non-PAE plasticizers, bisphenol analogs, parabens, UV stabilizers, and antioxidants. Their total concentrations ranged from 38.9 to 3810 μg/g (median of 193 μg/g) and from 18.6 to 1910 μg/g (307 μg/g) in lipstick (n = 34) and nail polish (n = 15), resp. The chem. compositions differed between lipstick and nail polish, but non-PAE plasticizers generally dominated over other groups of chems. A number of emerging plasticizers, OPEs, and UV stabilizers have rarely been reported in personal care products or environmental samples but were found at very high levels in beauty products, raising concern about their environmental release and human exposure risk. Although the employment of a hazard quotient approach suggested low health risks for exposure to industrial chems. from the use of beauty products, potential mixture effects from the chem. cocktail and occupational exposure to beauty products should not be overlooked.

Environmental Science & Technology Letters published new progress about 627-93-0. 627-93-0 belongs to esters-buliding-blocks, auxiliary class Ploymers, name is Dimethyl adipate, and the molecular formula is C4Br2N2O4S, Computed Properties of 627-93-0.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Ranganathan, Palraj published the artcileOptically transparent bio-based polyamides with microcellular foaming properties derived from renewable difunctional aminoamides, Application In Synthesis of 627-93-0, the publication is Journal of Applied Polymer Science (2022), 139(2), 51461, database is CAplus.

A green approach for the synthesis of bio-based polyamides (PAs) with a new macromol. structure was developed. These bio-based PAs were synthesized by solvent and catalyst-free polycondensation combining fatty dimer acid Pripol 1009 with new difunctional aminoamides (DAAs). The later DAAs building blocks were synthesized by aminolysis of renewable di-Me sebacate (DMS) and di-Me adipate (DMA) with 3 different aliphatic diamines having diverse chain lengths, 2, 4, and 6 carbons. Bio-based PAs showed M_w up to 30,581 g/mol, initial thermal degradation over 380°, T_m from 168.3-202.4°C, T_g from 28.3-37.5°C, strain from 36.4 ±4.0-313.5 ±2.0%, and tensile strength up to 27.4 ±0.1 MPa. All the PAs films had excellent optical transparency with cut-off wavelengths of 276.0-283.0 nm, transmittance from 82.7%-90.7% at 600 nm. As a proof-of-concept of their usage, 1 of the PA can form microcellular foam by the green scCO₂ method. The foams possessed uniform (cell size; 40μm, foam d.; 0.265 g/cm³, expansion rate; 7.2) and bimodal (cell size; 24/38μm, foam d.; 0.302 g/cm³, expansion rate; 6.5) cell textures depending on their foaming temperatures This is the first report of bio-based PA foams and transparent films manufacturing without toxic solvents.

Journal of Applied Polymer Science published new progress about 627-93-0. 627-93-0 belongs to esters-buliding-blocks, auxiliary class Ploymers, name is Dimethyl adipate, and the molecular formula is C8H14O4, Application In Synthesis of 627-93-0.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Zhang, Xu published the artcileBiodegradable Copolyesters with Unexpected Highly Blocky Microstructures and Enhanced Thermal Properties, Synthetic Route of 627-93-0, the publication is ACS Sustainable Chemistry & Engineering (2022), 10(14), 4438-4450, database is CAplus.

To synthesize novel biodegradable polyesters with high heat resistance and good crystallization capability, we designed a series of aliphatic-aromatic copolyesters, i.e., poly(isoidide-2,5-dimethylene adipate-co-terephthalate)s (PIATs) based on isoidide-2,5-dimethanol (IIDML), a rigid carbohydrate-based building block. The M_n values and intrinsic viscosities of PIAT copolyesters containing up to 40 mol % aromatic moieties are in the range of 6 000-19 000 g·mol^-1 and 0.5-0.87 dL·g^-1, resp. Interestingly, the products were obtained as blocky copolymers after the one-pot melt polycondensation process because of the thermodn. equilibrium of IIDML moieties driven by the insufficient thermal stability of the IIDML moieties. In addition, all the copolyesters are semicrystalline with crystallinity from 28% to 55% and tunable T_m values ranging from 88°C to a remarkable 189°C. They exhibit better (bio)degradability than the same type of polyesters. This work shows that this green monomer plays a key role in balancing thermal properties (especially T_g) and (bio)degradability, and these polyesters potentially broaden the application toward, for example, fibers.

ACS Sustainable Chemistry & Engineering published new progress about 627-93-0. 627-93-0 belongs to esters-buliding-blocks, auxiliary class Ploymers, name is Dimethyl adipate, and the molecular formula is C6H13I, Synthetic Route of 627-93-0.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics