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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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                            Products

                          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.