(Z)-2,3-Dihydro-3-((3,4-dimethoxyphenyl)methylene)-4H-1-benzothiopyran-4-one 130688-99-2 4H-1-Benzothiopyran-4-one, 2,3-dihydro-3-((3,4-dimethoxyphenyl)methylene)-, (Z)- 5-18-04-00106 (Beilstein Handbook Reference) BRN 3618501