10mg. (11aR)-10,11,12,13-Tetrahydro-5-hydroxy-3,7-bis[2,4,6-tricyclohexylphenyl]-5-oxide-diindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin, 98%. . Molecular Weight: 959.3. Molecular Formula: C49H63O4P. Color/form: off white to light yellow pwdr. Strem# 15-8596. http://www.strem.com/catalog/v/15-8596/