| 1 | 6420-32-2 | SIRIUS ORANGE G | SIRIUS ORANGE G | C37H28N6Na4O15S4
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| 2 | 12217-64-0 | tetrasodium 7,7'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis(naphthalene-1,3-disulphonate) | tetrasodium 7,7'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis(naphthalene-1,3-disulphonate) | C37H28N6Na4O15S4
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| 3 | 68109-69-3 | 3,3'-[carbonylbis[imino(5-methoxy-2-methyl-p-phenylene)azo]]bis(naphthalene-1,5-disulphonic) acid, sodium salt | 3,3'-[carbonylbis[imino(5-methoxy-2-methyl-p-phenylene)azo]]bis(naphthalene-1,5-disulphonic) acid, sodium salt | C37H28N6Na4O15S4
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| 4 | 96446-42-3 | | 1,3-Naphthalenedisulfonicacid,7-[[4-[[[[4-[(6,8-disulfo-2-naphthalenyl)azo]-2-methoxy-5-methylphenyl]amino]carbonyl]amino]-2-methoxy-5-methylphenyl]azo]-,tetrasodiumsalt | C37H28N6Na4O15S4
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