4873-41-0 Heptanamide, N,N'-[2,5-bis(1-aziridinyl)-3,6-dioxo-1,4-cyclohexadiene-1,4-diyl]bis- Heptanamide, N,N'-[3,6-bis(1-aziridinyl)-p-benzoquinon-2,5-ylene]bis- NSC51916