CAS# 871130-17-5. 25mg. (8aS)-18-Hydroxy-8,9-diphenyl-18-oxide-diphenanthro[4,3-d:3',4'-f][1,3,2]dioxaphosphepin, 98%, (99% ee). . Molecular Weight: 600.6. Molecular Formula: C40H25O4P. Color/form: light yellow to yellow pwdr. Strem# 15-8555. http://www.strem.com/catalog/v/15-8555/