Teniposide: C~32~H~32~O~13~S. Mw: 656.65. (1) Furo[3′,4′:6,7]naphtho[2,3-d]-1,3-dioxol-6(5aH)-one, 5,8,8a,9-tetrahydro-5-(4-hydroxy-3,5-dimethoxyphenyl)-9-[[4,6-O-(2-thienylmethylene)-β-D-glucopyranosyl]-oxy]-, [5R-[5α,5aβ,8aα,9β(R*)]]-; (2) 4′-Demethylepipodophyllotoxin 9-[4,6-O-(R)-2-thenylidene-β-D-glucopyranoside]. CAS-29767-20-2 (1978).