4'-Butyl-demethylpodophyllotoxin-glucosid [German] 4-19-00-05305 (Beilstein Handbook Reference) 73839-71-1 BRN 0074495 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-(4-butoxy-3,5-dimethoxyphenyl)-, (5R-(5-alpha,5a-beta,8a-alpha,9-alpha))-