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                    Product Name: 5-Acetyl-thiophene-2-carboxylic acid 
                        CAS NO.: 4066-41-5 
                        Description: 
 
| 
 Molecular Formula   | 
 C7H6O3S  |  
| 
 Molecular Weight   | 
 170.19  |  
| 
 CAS   | 
 4066-41-5   |  
| 
 Structural Formula   | 
  
  |  
| 
 Spec.   | 
 Appearance   | 
 white ¡«light yellow crystal   |  
| 
 Purity (HPLC)   | 
 Total impurity   | 
 ¡Ü2.0%  |  
| 
 Purity   | 
 ¡Ý98.0%  |  
| 
 Drying loss   | 
 ¡Ü1.0%  |  
| 
 Residue on ignition   | 
 ¡Ü0.1%  |    | 
                   
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