918631-64-8 1H-1,3-Diphospholium,2-(diphenylmethylene)-2,3-dihydro-1,3-dimethyl-1,3,4,5-tetraphenyl-,(1R,3R)-rel-, 1,1,1-trifluoromethanesulfonate (1:2) 917595-15-4 2H-Pyrrolium, 3,4-dihydro-2,2,4,4-tetramethyl-1-(2,4,6-trimethylphenyl)-,1,1,1-trifluoromethanesulfonate (1:1)