CAS# 213343-64-7. 100mg. (+)-1,2-Bis((2S,5S)-2,5-diethylphospholano)benzene(1,5-cyclooctadiene)rhodium(I) tetrafluoroborate, 98+% (S,S)-Et-DUPHOS-Rh. MFCD01862465. Molecular Weight: 660.37. Molecular Formula: Rh(C8H12)(C22H36P2)+BF4ae. Color/form: red-orange xtl. Strem# 45-0149. http://www.strem.com/catalog/v/45-0149/