(Benzoylmethylene)triphenylphosphorane (Phenacylidenetriphenyl)phosphorane (Phenylcarbonylmethylene)triphenylphosphorane (Triphenylphosphine)benzoylmethylene 2-(Triphenylphosphoranylidene)acetophenone 859-65-4 Acetophenone, 2-(triphenylphosphoranylidene)- Ethanone, 1-phenyl-2-(triphenylphosphoranylidene)- NSC167167 SKF 45359 WLN: RV1UPR&R&R