picolinic acid

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Related to picolinic acid: nicotinic acid, pipecolic acid

pic·o·lin·ic acid

 (pĭk′ə-lĭn′ĭk, pī′kə-)
A carboxylic acid derivative of pyridine, C6H5NO2, that is an isomer of niacin. Biosynthesized from tryptophan, it serves as an important chelating agent to assist in digestive uptake of beneficial trace metals. It is also produced and used industrially in the manufacture of herbicides.

[picolin(e) (from the fact that it is derived from an isomer of picoline) + -ic.]
References in periodicals archive ?
Many animals can convert extra tryptophan (an amino acid) to niacin, but cats have large amounts of the enzyme picolinic acid carboxylase that interferes with the conversion.
Briefly, through a series of enzymatic steps, tryptophan is normally converted into kynurenine, then to 3-hydroxykynurenine via kynurenine 3-monooxygenase (KMO; B2, NAD[P.sup.+]), then 3-hydroxyanthranilic acid is formed by kynureninase (KYNU; B6), and proceeds down the pathway to become either acetyl-coA, picolinic acid or quinolinic acid, which is further converted into NA[D.sup.+] through another series of enzymatic steps.
Healthy people have normal ACMSD activity which leads to a balance in the production of picolinic acid and quinolinic acid.
The results show the various organic acids present in the soil like (dl-Tartaric acid 5-Formylvanillic acid p-Phenylenediacetic acid 3 3-Dimethylacrylic acid r-Pentyloxybenzoic acid Glycolic acid Mesaconic acid Picolinic acid along with other compounds of benzene.
Picolinic Acid. Picolinic acid (PIC) is a six-member ring structure and isomer of nicotinic acid, containing five carbon atoms, a nitrogen, and a carboxyl group at position 2.
Saha, "Kinetics and mechanism of the picolinic acid catalysed chromium(VI) oxidation of ethane-1, 2-diol in the presence and absence of surfactants," Transition Metal Chemistry, vol.
Among them were alkanes, 4 phenyl valeric acid, 5 isopentyl picolinic acid, 3 hydroxylauric acid, (5 a, 3[beta]) 3-hydroxy-11-androstanone, 5[alpha]-2-en-11 androstenone, squalene, terpinol (a terpineol), menthol derivatives, palmitic, oleic and eicosanoic acids, and isoprenoid phytane.
Unlike 5-HTP, L-tryptophan is a building block for protein synthesis and is also metabolized to important compounds such as niacin and picolinic acid. Consequently, if a person is deficient in tryptophan, then supplementing with L-tryptophan would provide a broader spectrum of benefits than would treatment with 5-HTP.
2,4-D, 2,4-dichlorophenoxyacetic acid; Picloram, 4-amino-3,5,6-trichloro picolinic acid;
To answer your other question, all zinc picolinate products contain zinc attached to picolinic acid, which acts as a well-absorbed carrier.
Zinc is absorbed in the presence of picolinic acid and Vitamin B6 is needed for this reaction to occur.