| 7-({[1-methyl-4-({[1-methyl-4-({[1-methyl-5-({1-methyl-5-[(4,6,8-trisulfonaphthalen-2-yl)carbamoyl]-1h-pyrrol-3-yl}carbamoyl)-1h-pyrrol-3-yl]carbamoyl}amino)-1h-pyrrol-2-yl]carbonyl}amino)-1h-pyrrol-2-yl]carbonyl}amino)naphthalene-1,3,5-trisulfonic acid |
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