2275-61-8 AI 3-51254 BRN 1308323 ENT 51254 Methylamino-bis(1-aziridinyl)phosphine oxide P,P-Bis(1-aziridinyl)-N-methylphosphinic amide Phosphine oxide, bis(1-aziridinyl)methylamino- Phosphinic amide, P,P-bis(1-aziridinyl)-N-methyl-