Etoposide phosphate 10MG. Etoposide phosphate, CAS: 117091-64-2, MF: C29H33O16P, MW: 668. 54, Purity: greater than or equal to 98%, Appearance: White solid, Synonym: 4GC|-Demethylepipodophyllotoxin 9-(4, 6-O-ethylidene-B-D-glucopyranoside phosphate VP-16, Eposin, Etopophos, Size: 10MG