Synonyms: Rockphos;2-Di-tert-butylphosphino-3-Methoxy-6-Methyl-2'-4'-6'-triisopropylbiphenyl, 98% Min;2-(Di-t-butylphosphino)-3-Methoxy-6-Methyl-2'-4'-6'-tri-i-propyl-1,1'-biphenyl, Min. 98% RockPhos;Bis(1,1-dimethylethyl)[3-methoxy-6-methyl-2',4',6'-tris(1-methylethyl)[1,1'-biphenyl]-2-yl]phosphine;2-Di-tert-butylphosphino-3-Methoxy-6-Methyl-2',4',6'-triisopropyl-1,1'-biphenyl