3,3'-((2,5-Dichloro-3,6-dioxocyclohexa-1,4-diene-1,4-diyl)diimino)bis(6-anilinobenzenesulphonic) acid;2-anilino-5-[[4-[(4-anilino-3-sulfo-phenyl)amino]-2,5-dichloro-3,6-dioxo-1-cyclohexa-1,4-dienyl]amino]benzenesulfonic acid
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