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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: p-nitrotoluene-o-sulfonic acid
        Structural formula: 
                     
        Chemical formula: C7H11NO7S
        Molecular weight: 253
        CAS NO.:121-03-9
        Quality index:

        Item Index
        (1)Appearance milk white crystal
        (2)Assay (Gross sample)   ≥ 80.0%
        (3)Moisture (Gross sample)   ≤ 5.0%
        (4)Free acid (Gross sample) ≤ 1.0%
        (5)Insolubles(Gross sample)   ≤ 0.1%

        Main use: it is an intermediate of dyes, can be used to manufacture Yellow R.

        Packing: 25kg plastic woven bag or upon clients' request.