Synonyms: (2R,2'R,5R,5'R)-2,2'-5,5'-TETRAETHYL-1,1'-(1,2-PHENYLENE)DIPHOSPHOLANE;(2R,2'R,5R,5'R)-2,2'-5,5'-TETRAETHYL-1,1'-(O-PHENYLENE)DIPHOSPHOLANE;(-)-1,2-BIS((2R,5R)-2,5-DIETHYLPHOSPHOLANO)BENZENE;(R,R)-ETHYL-DUPHOS;(R,R)-ET-DUPHOS;(-)-1,2-Bis[(2R,5R)-2,5-diethylphospholano]benzene, Kanata purity;(-)-1,2-Bis((2R,5R)-2,5-diethylphospholano)benzene(r,r)-et-duphos;(-)-1,2-Bis((2R,5R)-2,5-diethylphospholano)benzene,98+%(R,R)-Et-DUPHOS