Quality criteria: USP30 / bp2012 / ep6.0/cpv2015
English Name: phthalylsulphathiazole (P-St)
CAS No.: 85-73-4
Molecular formula: C17H13N3O5S2 
MW: 403.43
Structural formula:
Appearance: white or yellowish crystalline powder
Content: ≥ 98.5%
Loss on drying: ≤ 2%
MP: 198-204 ° C
Package specifications: 25 kg / cardboard bucket, Φ thirty-six point five × 1175px
Storage conditions: shade, tight storage
Uses: after hydrolysis in the intestine to free amino groups, it can exert bacteriostatic effect. Spp., broad-spectrum, slow acting bacteriostatic drug. In the large intestine, the antibacterial effect was stronger than that of SG, which exceeded that of SST by 2-4 times. Sulfonamides. For gallinaceous dysentery, gallinaceous dysentery, paratyphoid fever). Is an intestinal anti-inflammatory drug.
Customs Code: 29350090
    
   
  
    
    
  
  
  
    
    
    Phthalic sulfathiazole is a kind of sulfanilamide antibacterial drug, which is similar to sulfamethoxazole and sulfothiazole succinate and has strong effect. It is rarely absorbed by oral administration. It slowly decomposes and releases sulfathiazole in the intestine to play the role of intestinal bacteriostasis. It is clinically used for enteritis, bacillary dysentery and intestinal preoperative preparation. Do not use sulfonamides when allergic. It is a broad-spectrum and slow acting antibacterial drug. It has strong antibacterial effect in large intestine, 2-4 times of SST. It is used for the treatment of avian pullorum, avian pullorum disease, paratyphoid, etc.
    
    
      
        
          
          
          
        
      
        
          
          
          
        
      
        
          
          
          
        
      
        
          
          
          
        
      
        
          
          
          
        
      
        
          
          
          
        
      
        
          
          
          
            IUPAC
            2-[[4-(1,3-thiazol-2-ylsulfamoyl)phenyl]carbamoyl]benzoic acid
           
        
      
        
      
     
   
  
  
  
    
    
    
      
        
      
        
      
        
          
          
          
            Matter Classification
            organic
           
          
        
      
        
          
          
          
        
      
     
   
  
  
  
    
    
    
      
        
          
          
          
        
      
        
          
          
          
        
      
        
          
          
          
        
      
        
          
          
          
        
      
        
          
          
          
            Appearance
            White or off white crystalline powder
           
        
      
        
          
          
          
            Acidity and Basicity
            
              
              
                
              
              
                alkalinity, 
              
                acidness