6-Hydroxynicotinic acid (Standard) is the analytical standard of 6-Hydroxynicotinic acid (HY-W001996). This product is intended for research and analytical applications. 6-Hydroxynicotinic acid is an intermediate in the oxidation of Nicotinic acid (HY-B0143) by Pseudomonas fluorescens and metabolite. 6-Hydroxynicotinic acid can be isolated from root exudates of Cucumis melo. 6-Hydroxynicotinic acid disrupts the Auxin signaling pathway. 6-Hydroxynicotinic acid inhibits haustoria precursor formation in Phlipanche aegyptiaca[1][2].