Chemical Structural:

Structural Formula : C₁₂H₁₄C_{l 2}NO₄SF
Molecular weight : 358.21
Chemical Name:Acetamide,2,2-dichloro-N-[1-(fluoromethyl)-2-hyolroxy-2-[4-methysulfonyl]phengl]-[R-(R ,S )]-
Standard: Ministerial Standard
Characteristics: White or off-white powder
CAS NO.:76639-94-6

Analysis ltems	Specification	Analysis result
Appearance	white or off-white powder crystal powder
Assay %	98min	98.9
Melting point °C	152~156	156
Specific rotatory degree	-16~-19	-18
Transparency	Qualified	Qualified
Fluorine %	4.8min	4.8
Heavy metal ppm	20max	Qualified
Loss on drying %	0.50 max	0.10
PH	4.5~6.5	5.7
Residue on ignition %	0.10 max	0.1

Microbiology:
Florfenicol is a synthetic,broad-spectrum antibiotic active against many gram-negative and gram-positive bacteria isolated from domestic animals.It is primaril bacteriostatic and acts by binding to the 50s ribosomal subunit and inhibiting bacterial protein synthesis.In vitro and in vivo activity has been demonstrated against commonly isolated bacterial pathogens involve in bovin respiratory disease(BRD) including Pasteurella haemolytica,Pasteurella multocida,and Haemophilus somnus,as well as against commonly isolated bacterial pathogens involved in bovine interdigital phlegmon including Fusobacterium necrophorum and Bacteroides melaninogenicus.

Dosage: Florfenicol is to be fed at 40 to 80g(40ppm-80ppm) per ton feed.
Product regime: (1) Premix (2)Injection (3)Soluble florfenicol powder
Bulk drugs Package: 25kg/drum
Storage: Store in a cool,dry place.