644-97-3 Benzene phosphorus dichloride Benzenephosphonous dichloride Dichlorophenylphosphine NSC66478 Phenyl phosphorus dichloride Phenyldichlorophosphine Phenylphosphine dichloride Phenylphosphonous acid dichloride Phenylphosphonous dichloride Phosphine, dichlorophenyl- Phosphonous dichloride, phenyl- WLN: GPGR