1. Introduction of Ceftiofur
Ceftiofur is one kind of white powder. Besides, the IUPAC Name of it is (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. In addition, it belongs to APIs;cephalosporins antibiotics;Heterocycles;Intermediates & Fine Chemicals;Pharmaceuticals;Sulfur & Selenium Compounds. The Classification Code of it is Anti-Bacterial Agents; Anti-Infective Agents; Antibacterial [veterinary]. It was first described in 1987.

2. Properties of Ceftiofur
Physical properties about Ceftiofur are:
(1)Melting Point: 190-200°C; (2)Product Categories: APIs; cephalosporins antibiotics; (3)H bond acceptors: 12; (4)H bond donors: 4; (5)Freely Rotating Bonds: 9; (6)Polar Surface Area: 213.69 Å²; (7)Index of Refraction: 1.819; (8)Molar Refractivity: 125.23 cm³; (9)Molar Volume: 287.7 cm³; (10)Surface Tension: 86.2 dyne/cm; (11)Density of Ceftiofur: 1.81 g/cm³.

3. Structure Descriptors of Ceftiofur
(1)InChI: InChI=1S/C19H17N5O7S3/c1-30-23-11(9-7-34-19(20)21-9)14(25)22-12-15(26)24-13(17(27)28)8(5-32-16(12)24)6-33-18(29)10-3-2-4-31-10/h2-4,7,12,16H,5-6H2,1H3,(H2,20,21)(H,22,25)(H,27,28)/b23-11-/t12-,16-/m1/s1
(2)InChIKey: InChIKey=ZBHXIWJRIFEVQY-IHMPYVIRSA-N
(3)Smiles: o1cccc1C(SCC1=C(N2[C@H](SC1)[C@@H](NC(=O)C(\c1nc(sc1)N)=N\OC)C2=O)C(=O)O)=O

4. Uses of Ceftiofur
Ceftiofur (CAS NO.80370-57-6) is an antibiotic of the cephalosporin type.It is use in veterinary medicine. In addition, it is licensed for use in veterinary medicine. It is resistant to the antibiotic resistance enzyme beta-lactamase, and has activity against Gram-positive and Gram-negative bacteria. E. coli strains resistant to ceftiofur have been reported.