Synonyms: Butanedioicacid, (6H-dibenz[c,e][1,2]oxaphosphorin-6-ylmethyl)-, bis(2-hydroxyethyl)ester, P-oxide; Butanedioic acid,[(6-oxido-6H-dibenz[c,e][1,2]oxaphosphorin-6-yl)methyl]-, bis(2-hydroxyethyl)ester (9CI); 6H-Dibenz[c,e][1,2]oxaphosphorin, butanedioic acid deriv.;Denaphorus R 112; E-Ester; GHM 1; H 201; H 201 (flame retardant); M-Ester; MES9030; MKE 301; Ukanol ES; Ukanol FR; Ukanol FR 50/1