The molecular formula of etoposide phosphate(117091-64-2) is C₂₉H₃₃O₁₆P,and its formula weight is 668.54.The Molecular Structure is:
The density of etoposide phosphate(117091-64-2) is 1.64 g/cm³ and it has a flash point of 502.7 °C.Besides,its index of refraction is 1.659 and the molar refractivity is 150.12 cm³,Its molar volume is 406.7 cm³ and  the polarizability is 59.51 10^-24m³.The surface tension of etoposide phosphate(117091-64-2) is 83 dyne/cm  and the enthalpy of vaporization is 138.25 kJ/mol.The vapour pressure is 1.57E-35 mmHg at 25^°C. In addition,it's IUPAC name is [4-[(5R,5aR,8aR,9S)-9-[(7,8-dihydroxy-2-methyl-4,4a,6,7,8,8a-hexahydropyrano[5,6-d][1,3]dioxin-6-yl)oxy]-6-oxo-5a,8,8a,9-tetrahydro-5H-isobenzofurano[5,6-f][1,3]benzodioxol-5-yl]-2,6-dimethoxy-phenyl] dihydrogen phosphate.  Its synonyms is as  follows:ETOPOPHOS;ETOPOSIDE PHOSPHATE;ETOPOSIDE PHOSPHONATE;ETOPOSIDE PHOSPHONATE,ETOPOPHOS;Furo[3',4':6,7]naphtho[2,3-d]-1,3-dioxol-6(5aH)-one, 5-[3,5-dimethoxy-4-(phosphonooxy)phenyl]-9-[[4,6-O-(1R)-ethylidene-b-D-glucopyranosyl]oxy]-5,8,8a,9-tetrahydro-, (5R,5aR,8aR,9S)-;ETOPOSIDEPHOSPHATE,ETOPOPHOS .Its appearance is white solid.

Etoside phosphate(117091-64-2) is used as a form of chemotherapy for malignancies such as Ewing's sarcoma, lung cancer, testicular cancer, lymphoma, non-lymphocytic leukemia, and glioblastoma multiforme. It is often given in combination with other drugs. Sometimes it is also used in a conditioning regimen prior to a bone marrow or blood stem cell transplant.Its chemical make-up derives from podophyllotoxin,which is a toxin found in the American Mayapple.

Freezer (-20°C). Protect from light and moisture. Following
reconstitution, aliquot and freeze (-20°C). This product is stable for 3
years as supplied. Aqueous stock solutions are stable for up to 3
months at -20°C.