C.I. 23790;C.I. Direct Blue 25 (VAN);C.I. Direct Blue 25, tetrasodium salt;C.I. Direct Blue 25;C.I. Direct Blue 25, tetrasodium salt (8CI);(3Z)-5-hydroxy-3-({4'-[(2E)-2-(8-hydroxy-1-oxo-3,6-disulfonaphthalen-2(1H)-ylidene)hydrazino]-3,3'-dimethylbiphenyl-4-yl}hydrazono)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonic acid
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