4-methylphenyl 3-[({4-hydroxy-7-[(N-{5-hydroxy-7-[({3-[(4-methylphenyl)oxysulfonyl]phenyl}amino)sulfonyl](2-naphthyl)}carbamoyl)amino]-2-naphthyl}sulfonyl)amino]benzenesulfonate 、 7-{[(7-{[(3-Sulfophenyl)amino]sulfonyl}-2-naphthyl)amino]carbonylamino}naphthalene-2-sulfonic acid disodium salt 生成 3-{[(4-hydroxy-7-{[(5-hydroxy-7-{[(3-sulfophenyl)amino]sulfonyl}(2-naphthyl))amino]carbonylamino}-2-naphthyl)sulfonyl]amino}benzenesulfonic acid