The Complete List of Suppliers for 4-hydroxy-5-[(2-hydroxy-1-naphthyl)azo]-3-[(2-hydroxy-3-nitro-5-sulphophenyl)azo]naphthalene-2,7-disulphonic acid, sodium salt
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![93940-13-7,4-hydroxy-5-[(2-hydroxy-1-naphthyl)azo]-3-[(2-hydroxy-3-nitro-5-sulphophenyl)azo]naphthalene-2,7-disulphonic acid, sodium salt,2,7-Naphthalenedisulfonicacid,4-hydroxy-5-[(2-hydroxy-1-naphthalenyl)azo]-3-[(2-hydroxy-3-nitro-5-sulfophenyl)azo]-,sodium salt (9CI)](http://www.lookchem.com/300w/2010/0625/93940-13-7.jpg)