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               4,4’-Diaminostilbene-2,2’-disulf..
               p-nitrotoluene-o-sulfonic acid ..
               4,4-Dinitrostilbene-2,2-disulfon..
               Aniline-2,5-disulfonic acid mono..
               Para Amino Azo Benzene 4 Sulfoni..
               4-aminobenzene-1,3-disulphonic a..
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        Chemical name: Para Amino Azo Benzene 4 Sulfonic Acid
        Structural formula: 
                     

        Chemical formula: C12H11N3O3S
        Molecular weight: 277.3
        CAS NO.:104-23-4
        Quality index:

        Item Index
        Appearance Orange to Brown Powder
        Water 1% Maxi
        Water Insolluble 0.2% Maxi
        4-Aminoazobenzene-3’-sulfonic
        acid  [102-23-8]
        1 %  Maxi
        4-Aminoazobenzene [60-09-3] <  0.1%
        Sulphate  content 2500  PPM  Maxi
        Ash  content 0.1%  Maxi

        Main use: it is an intermediate of dyes, can be used to manufacture Acid Yellow 6, Acid Red 151, Acid Red 7, Acid Red 142, Direct Red 152
        Packing: 25kg plastic woven bag or upon clients' request.