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.
Origin of picolinic acid
picolin(e) ( from the fact that it is derived from an isomer of picoline ) -ic