1,3-Benzenedicarboxamide, N,N'-bis[5-[[4-[[[(3-amino- 3-iminopropyl)amino]carbonyl]-1-methyl-1H-pyrrol-2-yl] amino]carbonyl]-1-methyl-1H-pyrrol-3-yl]-, dihydrochloride 126501-91-5 NSC634555