4238-92-0 Butylaminobis(1-aziridinyl)phosphine oxide ENT 51028 NSC51230 P,P-Bis(1-aziridinyl)-N-butylaminophosphine oxide P,P-Bis(1-aziridinyl)-N-butylphosphinic amide P,P-Di(1-aziridinyl)-N-butylphosphinic amide Phosphine oxide, bis(1-aziridinyl)butylamino- Phosphinic amide, P,P-bis(1-aziridinyl)-N-butyl- WLN: T3NTJ APO&M4&- AT3NTJ