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      av无码东京热亚洲男人的天堂

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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..
                  More
            Products

          Chemical name: 4,4-Dinitrostilbene-2,2-disulfonic acid
          Structural formula: 
                         
          Chemical formula: C14H10N2O10S2
          Molecular weight: 430
          CAS NO.:128-42-7
          Quality index:

          Item Index
          (1)Appearance orange powder
          (2)Binitro acid content(gross dry product)   ≥ 65.0%
          (3)binitrobenzyl compound
          (gross dry product )    
          ≤ 0.5%
          (4)Other organic impurities(gross dry product )   ≤ 2.0%
          (5)Inorganic salt(gross dry product )        ≤ 2.0%
          (6)Water insolubles(gross dry product)       ≤ 1.0%

          Main use: it is an intermediate of dyes.
          Packing: 25kg plastic woven bag.