2798-20-1 4H-1-Benzopyran-4-one, 5-hydroxy-6,7,8-trimethoxy-2-(4-methoxyphenyl)- 5-Hydroxy-6,7,8-trimethoxy-2-(4-methoxyphenyl)-4H-1-benzopyran-4-one Demethyltangeretin Gardenin B NSC 79093