5-20-01-00126 (Beilstein Handbook Reference) 54805-65-1 AB-181 BRN 1590708 CARBAMIC ACID, ACETOXY(BIS(1-AZIRIDINYL)PHOSPHINYL)-, ETHYL ESTER Carbamic acid, (acetyloxy)(bis(1-aziridinyl)phosphinyl)-, ethyl ester (9CI) N-(Bis(1-aziridinyl)phosphinyl)-O-acetyl-N-hydroxyurethane NSC 200721