disodium 7-hydroxy-8-[[4'-[[4-[[(p-tolyl)sulphonyl]oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]naphthalene-1,3-disulphonate , 97%-99.9% , 【3567-65-5】
Molecular Formula: C35H27N4NaO10S3
Formula Weight: 782.79
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