115091-78-6 2-Amino-4-(3,4-dimethoxyphenyl)-4H,5H-(1)benzothiopyrano(4,3-b)pyran-3-carbonitrile 4H,5H-(1)Benzothiopyrano(4,3-b)pyran-3-carbonitrile, 2-amino-4-(3,4-dimethoxyphenyl)- BRN 4275433