Allyltriphenylphosphonium bromide1560-54-930 % similar Triphenyl-2-propynylphosphonium bromide2091-46-530 % similar Isobutyltriphenylphosphonium bromide22884-29-330 % similar Fluorobenzene462-06-630 % similar Cyclohexyltriphenylphosphonium bromide7333-51-930 % similar Hexaphenylbenzene992-04-130 % similar