四川丰满少妇一级毛片63

                      

                          

                              










                              
  
                              
    





                               
                              

                              
  
                              
           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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                              p-nitrotoluene-o-sulfonic acid 
                              
                    
                              		
                
                              
                
                              
                   
                              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.