Synonyms: Tazarotene, 3-Pyridinecarboxylic acid, 6-[2-(3,4-dihydro-4,4-dimethyl-2H-1-benzothiopyran-6-yl)ethynyl]-, ethyl ester, 3-Pyridinecarboxylic acid, 6-[(3,4-dihydro-4,4-dimethyl-2H-1-benzothiopyran-6-yl)ethynyl]-, ethyl ester (9CI), 2H-1-Benzothiopyran, 3-pyridinecarboxylic acid deriv., AGN 190168, Acnitaz, Tazarotene, Tazorac, Zorac