1-(2-(Bis(1-aziridinyl)phosphinyl)vinyl)-3-(2,4-xylyl)urea 5-20-01-00102 (Beilstein Handbook Reference) 54948-25-3 BRN 1599092 Phosphine oxide, bis(1-aziridinyl)((3-(2,4-xylyl)ureido)vinyl)- Urea, 1-(2-(bis(1-aziridinyl)phosphinyl)vinyl)-3-(2,4-xylyl)-