100mg. (11aR)-3,7-Bis(3,5-dimethylphenyl)-10,11,12,13-tetrahydro-10,10,13,13-tetramethyl-5-hydroxy-5-oxide-diindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin, 98%, (99% ee). . Molecular Weight: 578.7. Molecular Formula: C37H39O4P. Color/form: off white to light yellow pwdr. Strem# 15-8562. http://www.strem.com/catalog/v/15-8562/