Ceftiofur is an antibiotic of the cephalosporin type (third generation), licensed for use in veterinary medicine. It was first described in 1987.[1] It is marketed by pharmaceutical company Zoetis as Excenel,[2] and is the active ingredient in that company's Specramast LC (lactating cow formula) product.

Starting at
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 (6R,7R)-7-[ [(2Z)-2-(2-Amino-1,3-thiazol-4-yl)- 2-methoxyiminoacetyl]amino]-3-(furan-2- carbonylsulfanylmethyl)-8-oxo-5-thia-1- azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid 
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| AHFS/Drugs.com | International Drug Names | 
| CAS Number | 80370-57-6 | 
| ATCvet code | QJ01DD90 QJ51DD90 | 
| PubChem | CID: 6328657 | 
| ChemSpider | 4886668 | 
| UNII | 83JL932I1C | 
| KEGG | D07657 | 
| ChEMBL | CHEMBL222913 | 
| Formula | C19H17N5O73 | 
| Molecular mass | 523.56 g/mol | 
| SMILES[show] | |
| InChI[show] | |
			
        
    
			
        
    
			
        
    
			
        
    
                            
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