38661-56-2

p-Xylylen-bis-diphenylphosphinoxid 1,4-Bis-(diphenyl-phosphinoylmethyl)-benzene Phosphine oxide, [1,4-phenylenebis(methylene)]bis[diphenyl- Phosphine oxide, 1,1'-[1,4-phenylenebis(methylene)]bis[1,1-diphenyl- 1-({4-[(1-oxo-1-phenyl-1-phosphanylcyclohexa-2,4-dien-1-yl)methyl]phenyl}methyl)-1-phenyl-1-phosphanylcyclohexa-2,4-dien-1-one