(Z)-2,3-Dihydro-3-((4-hydroxy-3-methoxyphenyl)methylene)-4H-1-benzothiopyran-4-one 130689-00-8 4H-1-Benzothiopyran-4-one, 2,3-dihydro-3-((4-hydroxy-3-methoxyphenyl)methylene)-, (Z)- BRN 3618432