Results 1 to 10 of about 5,127,479 (193)

Synthesis and evaluation of antimicrobial activity of cyclic imides derived from phthalic and succinic anhydrides

open access: yesResearch in Pharmaceutical Sciences, 2017
Cyclic imides are a group of compounds which have valuable biological properties including cytotoxic, anti-inflammatory, antibacterial and antifungal activities. In this study, succinic and phthalic anhydrides were treated with glycinamide in pyridine to
Elham Jafari   +5 more
doaj   +2 more sources

Effects of Exogenous Organic Acids on the Soil Metabolites and Microbial Communities of Panax notoginseng from the Forest Understory

open access: yesAgronomy
Panax notoginseng (Sanqi) is a precious traditional Chinese medicine that is commonly cultivated using conventional management methods in agricultural systems in Yunnan, China, where it faces the challenge of continuous cropping obstacles (CCOs). However,
Jingying Hei   +4 more
doaj   +2 more sources

Associations of Phthalate Metabolites and Bisphenol A Levels with Obesity in Children: The Korean National Environmental Health Survey (KoNEHS) 2015 to 2017 [PDF]

open access: yesEndocrinology and Metabolism, 2022
Background Phthalates and bisphenol A (BPA) are synthetic chemicals widely used in daily life. This study investigated urinary phthalate and BPA levels in Korean children and their associations with obesity. Methods A total of 2,351 children aged 3 to 17
Moon Young Seo   +3 more
doaj   +1 more source

Synthesis and Characterization of some New Amic acid and Imides and study the Biological Activity

open access: yesTikrit Journal of Pure Science, 2023
This study includs the synthesis of some new Amic acid and Imides, starting from the esters [S1] of Terephthalic acid which then converted to its hydrazide [S2] then to amic acid derivatives [S3-S7] and finally with imides [S8-S12].
Salwa Abd Al-Satar Jabbar
doaj   +1 more source

Evaluation of anthropogenic secondary organic aerosol tracers from aromatic hydrocarbons [PDF]

open access: yesAtmospheric Chemistry and Physics, 2017
Products of secondary organic aerosol (SOA) from aromatic volatile organic compounds (VOCs) – 2,3-dihydroxy-4-oxopentanoic acid, dicarboxylic acids, nitromonoaromatics, and furandiones – were evaluated for their potential to serve as anthropogenic SOA ...
I. M. Al-Naiema, E. A. Stone
doaj   +1 more source

Geometry and conformation of benzenecarboxylic acids [PDF]

open access: yesJournal of the Serbian Chemical Society, 2004
The geometry, conformations and energy of mono-, di-, and tri-carboxylic derivatives of benzene were studied by means of the AM1 molecular-orbital method.
Marković Zoran   +2 more
doaj   +1 more source

Glycine–phthalic acid (1/1) [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2012
In the title compound, C2H5NO2·C8H6O4, the glycine mol-ecule exists as a zwitterion (2-aza-niumyl-ethano-ate) with a positively charged amino group and a negatively charged carboxyl-ate group. In the crystal, N-H⋯O and O-H⋯O hydrogen bonds link the components into layers parallel to the ab plane.
Balakrishnan, T.   +2 more
openaire   +2 more sources

Historic records of organic compounds from a high Alpine glacier: influences of biomass burning, anthropogenic emissions, and dust transport [PDF]

open access: yesAtmospheric Chemistry and Physics, 2016
Historic records of α-dicarbonyls (glyoxal, methylglyoxal), carboxylic acids (C6–C12 dicarboxylic acids, pinic acid, p-hydroxybenzoic acid, phthalic acid, 4-methylphthalic acid), and ions (oxalate, formate, calcium) were determined with annual ...
C. Müller-Tautges   +8 more
doaj   +1 more source

Residue-Specific Incorporation of the Non-Canonical Amino Acid Norleucine Improves Lipase Activity on Synthetic Polyesters

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
Environmentally friendly functionalization and recycling processes for synthetic polymers have recently gained momentum, and enzymes play a central role in these procedures.
Karolina Haernvall   +21 more
doaj   +1 more source

Chemical Characterization of Water-Soluble Organic Acids in Size-Segregated Particles at a Suburban Site in Saitama, Japan

open access: yesAsian Journal of Atmospheric Environment, 2009
Saturated n-dicarboxylic acids (C2-C7, C9), unsaturated dicarboxylic acids (maleic, fumaric, phthalic acid), ketocarboxylic acids (pyruvic, glyoxylic acid), and dicarbonyls (glyoxal, methylglyoxal) were determined in size-segregated samples with a high ...
Linfa Bao , Kazuhiko Sakamoto
doaj   +1 more source

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