label: 1,2,3,4-tetrahydro-8,9-dimethoxy-3-(2-piperidinoethyl)-5H-(1)benzopyrano(3,4-c)pyridin-5-one dihydrochloride
label_lc: 1,2,3,4-tetrahydro-8,9-dimethoxy-3-(2-piperidinoethyl)-5h-(1)benzopyrano(3,4-c)pyridin-5-one dihydrochloride