1779-48-2 4-16-00-01033 (Beilstein Handbook Reference) AI3-15040 BRN 2802244 Benzenephosphinic acid Benzenephosphonous acid Benzenephosphonous acid (VAN) EINECS 217-217-3 Hydroxyphenylphosphine oxide NSC 2670 Phenylphosphinic acid Phenylphosphonous acid Phosphinic acid, phenyl-