Anthranilic acid (or o-amino-benzoic acid) is an aromatic acid with the formula C₆H₄(NH₂)(CO₂H). The molecule consists of a substituted benzene ring, hence is classed as aromatic, with two adjacent, or "ortho-" functional groups, a carboxylic acid and an amine. The compound is consequently amphoteric. In appearance, anthranilic acid is a white solid when pure, although commercial samples may appear yellow. It is sometimes referred to as vitamin L₁ and has a sweetish taste. The anion [C₆H₄(NH₂)(CO₂)], obtained by the deprotonation of anthranilic acid, is called anthranilate.