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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..
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            Products

          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.