1746-03-8 4-04-00-03568 (Beilstein Handbook Reference) BRN 1741622 EINECS 217-123-2 ETHENYL PHOSPHONATE Ethenephosphonic acid Ethenylphosphonic acid Ethylenephosphonic acid Phosphonic acid, ethenyl- Phosphonic acid, vinyl- (6CI,7CI,8CI) Vinylphosphonic acid