ethyl 6-[2-(4,4-dimethylthiochroman-6-yl)ethynyl]pyridine-3-carboxylate 6-[2-(4,4-dimethyl-6-thiochromanyl)ethynyl]-3-pyridinecarboxylic acid ethyl ester 6-[2-(4,4-dimethylthiochroman-6-yl)ethynyl]nicotinic acid ethyl ester 118292-40-3 D01132 Tazarotene (JAN/USAN/INN) C12531 AGN-190168 Suretin Tazoral 3-Pyridinecarboxylic acid, 6-((3,4-dihydro-4,4-dimethyl-2H-1-benzothiopyran-6-yl)ethynyl)-, ethyl ester AGN 190168 Ethyl 6-((4,4-dimethylthiochroman-6-yl)ethynyl)nicotinate TAZAROTENE Tazarotene [USAN:INN] Tazorac Zorac Avage Avage (TN)