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Acid Violet 7 free acid

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Formula : C20-H18-N4-O9-S2
CAS : 25317-51-5 
UNII-Z2MH954O3D Food Red 11 free acid Acid Violet 7 free acid 2|7-Naphthalenedisulfonic acid| 5-(acetylamino)-3-(2-(4-(acetylamino)phenyl)diazenyl)-4-hydroxy- 2|7-Naphthalenedisulfonic acid| 5-(acetylamino)-3-((4-(acetylamino)phenyl)azo)-4-hydroxy-

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Acid Violet 7B

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Formula : C37-H36-N3-O6-S2.Na
CAS : 5905-34-0 
UNII-Y28K009K3O Acid Violet 7B Acid Violet 7B [MI] N-(4-(Bis(4-(ethyl(3-sulfophenyl)amino)phenyl)methylene)-2|5-cyclohexadien-1-ylidene)-N-methylmethanaminium inner salt| sodium salt Methanaminium| N-(4-(bis(4-(ethyl(3-sulfophenyl)amino)phenyl)methylene)-2|5-cyclohexadien-1-ylidene)-N-methyl-| inner salt| sodium salt (1:1) Acid Violet 25 C.I. 42745

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