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THE CRYSTAL STRUCTURE OF PICOLINIC ACID

Chemistry Letters, 1973
Abstract The crystal structure of picolinic acid was determined by a three-dimensional X-ray analysis. The molecules are linked by two symmetric double minimum hydrogen bonds with a small potential barrier, N–H–N and O–H–O,and form a zig-zag chain.
Fusao Takusagawa, Akira Shimada
openaire   +1 more source

Immunobiology of Picolinic Acid

1996
Exposure of various cell types to IFN results in increased enzymatic activities leading to the breakdown of tryptophan and evidence exists to suggest that the catabolism of tryptophan may be connected to the biological effects of interferon (Carlin et al., 1989.
G, Melillo   +3 more
openaire   +2 more sources

Investigation of Picolinic Acid Extraction by Trioctylamine

International Journal of Chemical Reactor Engineering, 2011
Picolinic acid is a pyridine compound with a carboxyl side chain at the 2-position. It is an isomer of nicotinic acid, which has the carboxyl side chain at the 3-position. Picolinic acid acts as a chelating agent of elements such as chromium, zinc, manganese, copper, iron, and molybdenum in the human body.
Amac Fatih Tuyun, Hasan Uslu
exaly   +3 more sources

New Derivatives of Picolinic Acid and Nicotinic Acid with Anticonvulsant Activity

Protein & Peptide Letters, 2005
Previously obtained Pic-BZA is a potent anticonvulsant with low neurotoxicity, but its half-time of action is only about 15 min. In search for equally effective anticonvulsants but with a longer time of action fourteen Pic-BZA analogs were obtained.
Paruszewski, R   +3 more
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Picolinic Acid in Acrodermatitis Enteropathica

Journal of Pediatric Gastroenterology and Nutrition, 1984
SummaryThree children with acrodermatitis enteropathica (AE) were treated with oral zinc dipicolinate (zinc‐PA). The daily dose of zinc required to prevent exacerbations, when administered as the dipicolinate complex, was one‐third the minimum amount of zinc required as the sulfate salt. The concentration of picolinic acid in the plasma of asymptomatic
I, Krieger, R, Cash, G W, Evans
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Microbial oxidation of kynurenic, xanthurenic and picolinic acids

Biochimica et Biophysica Acta, 1963
Abstract 1. 1. Resulta of a study of the degradation of kynurenic acid by an Aerococcus are in agreement with a reaction sequence proposed for Pseudomonas by other workers. This sequence includes Compounds I and II below. 2. 2. Partial inhibition of oxidation of kynurenic acid by cell suspensions caused an accumulation of pyruvate with ...
S, DAGLEY, P A, JOHNSON
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A Picolinic Acid Derivative: A Plant Growth Regulator

Science, 1963
4-Amino-3,5,6-trichloropicolinic acid is more toxic to many broad-leaved plants than 2,4-dichlorophenoxyacetic acid and 2,4,5-trichlorophenoxyacetic acid. It is comparable in absorption by foliage, in translocation, and in soil-leaching characteristics; in soil, however, it retains its activity for a longer time.
J W, Hamaker   +3 more
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