1,1-Dimethyl-2-piperidinoethyl 2-phenyl-3-methyl-4-oxo-4H-1-benzopyran-8-carboxylate HCl 3-Methylflavone-8-carboxylic acid, 1,1-dimethyl-2-(1-piperidinyl)ethyl ester, hydrochloride 4H-1-Benzopyran-8-carboxylic acid, 3-methyl-4-oxo-2-phenyl-, 1,1-dimethyl-2-(1-piperidinyl)ethyl ester, hydrochloride 86433-39-8 Rec 15-2053 Terflavoxate hydrochloride