1-Naphthalenesulfonic acid, 3-[2-[4'-[2-[7-[2-(4-amino-3-methoxyphenyl)diazenyl]-1-hydroxy-3-sulfo-2-naphthalenyl]diazenyl]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]diazenyl]-4-hydroxy-, sodium salt (1:2)
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Disodium 3-{[4'-({7-[(4-amino-3-methoxyphenyl)diazenyl]-1-hydroxy-3-sulfonato-2-naphthyl}diazenyl)-3,3'-dimethoxy-4-biphenylyl]diazenyl}-4-hydroxy-1-naphthalenesulfonate
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Disodium 3-{[4'-({7-[(4-amino-3-methoxyphenyl)diazenyl]-1-hydroxy-3-sulfonato-2-naphthyl}diazenyl)-3,3'-dimethoxybiphenyl-4-yl]diazenyl}-4-hydroxynaphthalene-1-sulfonate
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