C.I.20505;BlackB;BlackKN-B;Tetrasodium(3Z)-5-amino-4-oxo-6-[4-(2-sulfonatooxyethylsulfonyl)phenyl]diazenyl-3-[[4-(2-sufonatooxyethylsulfonyl)phenyl]hydrazinylidene]naphthalene-2,7-disulfonate;ReactiveBlack5;C.I.ReactiveBlack5:C.I.20505
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