2-[4-[4-[4-[4-(2-Bromo-2-propenamido)-1-methylpyrrol-2-ylcarboxamido]-1-methylpyrrol-2-ylcarboxamido]-1-methylpyrrol-2-ylcarboxamido]-1-methylpyrrol-2-ylcarboxamido]ethylguanidine hydrochloride [ 203258-38-2 ]