Results 1 to 10 of about 26,428 (238)

SEPARATION OF p-AMINOBENZOIC ACID BY REACTIVE EXTRACTION. 1. MECHANISM AND INFLUENCING FACTORS [PDF]

open access: goldChemical Industry and Chemical Engineering Quarterly, 2008
The comparative study on the reactive extraction of p-aminobenzoic acid with Amberlite LA-2 and D2EHPA in two solvents with different polarity (n-heptane and dichloromethane) indicated that the extractant type and solvent polarity control the extraction ...
DAN CASCAVAL   +2 more
doaj   +5 more sources

P-aminobenzoic acid promotes retinal regeneration through activation of Ascl1a in zebrafish [PDF]

open access: yesNeural Regeneration Research
The retina of zebrafish can regenerate completely after injury. Multiple studies have demonstrated that metabolic alterations occur during retinal damage; however to date no study has identified a link between metabolites and retinal regeneration of ...
Meihui He   +5 more
doaj   +2 more sources

Synthesis and Antibacterial Activity of New Azole, Diazole and Triazole Derivatives Based on p-Aminobenzoic Acid [PDF]

open access: yesMolecules, 2021
The p-aminobenzoic acid was applied for the synthesis of substituted 1-phenyl-5-oxopyrrolidine derivatives containing benzimidazole, azole, oxadiazole, triazole, dihydrazone, and dithiosemicarbazide moieties in the structure.
Birutė Sapijanskaitė-Banevič   +6 more
doaj   +2 more sources

Synthesis, crystal structure and biological activity of 2-hydroxyethylammonium salt of p-aminobenzoic acid. [PDF]

open access: yesPLoS ONE, 2014
p-Aminobenzoic acid (pABA) plays important roles in a wide variety of metabolic processes. Herein we report the synthesis, theoretical calculations, crystallographic investigation, and in vitro determination of the biological activity and phytotoxicity ...
Manuela E Crisan   +6 more
doaj   +2 more sources

Relative Acidity and Basicity of Sulphanilamide and p-Aminobenzoic Acid [PDF]

open access: bronzeNature, 1942
SINCE no determination of the relative acidic or basic dissociation constants of sulphanilamide appears to have been published, this drug was potentio-metrically titrated against N/1 hydrochloric acid followed by N/1 sodium hydroxide. p-Aminobenzoic acid and p-aminophenylacetic acid were treated similarly for purposes of comparison.
Adrien Albert, R. J. Goldacre
openalex   +2 more sources

Determination of p-Aminobenzoic Acid in Feeds [PDF]

open access: bronzeJournal of AOAC INTERNATIONAL, 1964
Abstract Collaborative studies were conducted on a revised method for p-aminobenzoic acid (PABA) in feeds. PABA is diazotized and coupled with N-1-naphthylethylenediamine dihydrochloride to form a red complex that provides both a qualitative test and a spectrophotometric assay.
Richard T Merwin
openalex   +3 more sources

Structural Characterization of Co-Crystals of Chlordiazepoxide with p-Aminobenzoic Acid and Lorazepam with Nicotinamide by DSC, X-ray Diffraction, FTIR and Raman Spectroscopy [PDF]

open access: yesPharmaceutics, 2020
The low water solubility of benzodiazepines seriously affects their bioavailability and, in consequence, their biological activity. Since co-crystallization has been found to be a promising way to modify undesirable properties in active pharmaceutical ...
Patrycja Garbacz   +3 more
doaj   +2 more sources

Molecular Antioxidant Properties and In Vitro Cell Toxicity of the p-Aminobenzoic Acid (PABA) Functionalized Peptide Dendrimers [PDF]

open access: yesBiomolecules, 2019
Background: Exposure to ozone level and ultraviolet (UV) radiation is one of the major concerns in the context of public health. Numerous studies confirmed that abundant free radicals initiate undesired processes, e.g. carcinogenesis, cells degeneration,
Marta Sowinska   +6 more
doaj   +2 more sources

Studies of a Yeast Exacting towards p-Aminobenzoic Acid

open access: bronzeJournal of General Microbiology, 1950
SUMMARY: Certain single-cell strains of brewer's top fermentation yeasts require p-aminobenzoic acid as an essential nutrient. Relatively large quantities of adenine, together with certain amino-acids, of which methionine and histidine were of prime importance, could substitute for the p-aminobenzoic acid.
N. S. Cutts, C. Rainbow
openalex   +4 more sources

p-Aminobenzoic Acid in Feeds [PDF]

open access: bronzeJournal of AOAC INTERNATIONAL, 1962
Richard T Merwin
openalex   +3 more sources

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