1,2,3,4-Tetrahydro-8,9-dimethoxy-3-(2-piperidinoethyl)-5H-(1)benzopyrano(3,4-c)pyridin-5-one dihydrochloride 41806-51-3 5H-(1)Benzopyrano(3,4-c)pyridin-5-one, 1,2,3,4-tetrahydro-8,9-dimethoxy-3-(2-(1-piperidinyl)ethyl)-, dihydrochloride NSC 305338 W 10 294A W-10294A W-10294A dihydrochloride W10294A