IUPAC:7',8-dihydroxy-6'-methoxy-2'-methyl-3',4',6,8-tetrahydro-2H,2'H-spiro[indeno[4,5-d][1,3]dioxole-7,1'-isoquinolin]-2'-ium-2'-olate
IUPAC:7',8-dihydroxy-6'-methoxy-2'-methyl-3',4',6,8-tetrahydro-2H,2'H-spiro[indeno[4,5-d][1,3]dioxole-7,1'-isoquinolin]-2'-ium-2'-olate