4'-Isoamyl-demethylpodophyllotoxin-glucosid [German] 73839-74-4 Furo(3',4':6,7)naphtho(2,3-d)-1,3-dioxol-6(5ah)-one, 5,8,8a,9-tetrahydro-9-(beta-D-glucopyranosyloxy)-5-(3,5-dimethoxy-4-(3-methylbutoxy)phenyl)-, (5R-(5-alpha,5a-beta,8a-alpha,9-alpha))-