Introduction:
Florfenicol is a widely used veterinary antibiotic known for its broad antimicrobial spectrum, potent bacteriostatic activity, and low minimum inhibitory concentration (MIC). Its antibacterial efficacy is 15 to 20 times stronger than that of chloramphenicol and thiamphenicol. Following oral administration, peak drug concentration in tissues is reached within 60 minutes, enabling rapid control of infections. It is characterized by high safety, non-toxic properties, zero residues, and no risk of inducing aplastic anemia—making it an ideal solution for large-scale livestock and poultry operations.
Details:
| Product Name | florfenicol |
| CAS | 73231-34-2 |
| Appearance | White or almost white crystalline powder |
| MF | C12H14Cl2FNO4S |
| Molecular Weight | 358.21 |
| Purity | 99% min |
| Storage | Keep in a cool, dry, dark location in a tightly sealed container or cylinder |
| Shelf Life | 24 Months |
Certificate of Analysis (COA):
| Item | Standred | Results |
| Appearance | White or almost white crystalline powder | Almost white crystalline powder |
| Melting point | 152-156°C | 154.6-155.1°C |
| Specific optical rotation | -16° to -19° | -17.5° |
| Identification | (1)The retention time of the major peak in the chromatogram of the assay preparation corresponds to that in the chromatogram of the standard preparation,as obtained in the assay. | Complies |
| (2)UV absorption Max. at 266nm. | Complies | |
| (3)IR spectra is consistent with CRS. | Complies | |
| PH | 4.5-6.5 | 5.7 |
| Chloride | 0.02% max | <0.02% |
| Fluorides | 4.8%min | 4.9% |
| Related substances | Individual impurity not more than 0.5% | 0.35% |
| Total impurities not more than 2.0% | 0.76% | |
| Water | 0.5% max | 0.13% |
| Residue on ignition | 0.1%max | 0.06% |
| Heavy metals | Less than or egual to 20 millionths | Less than20 millionths |
| Assay(C12H14Cl2FNO4S) | 98.0%min | 99.0%d |
Function:
Florfenicol exerts its antibacterial action by binding tightly to the 50S ribosomal subunit of bacteria, inhibiting peptidyltransferase's transpeptide reaction and blocking peptide chain elongation. Additionally, it selectively targets the 70S ribosomes—unique to bacterial cells—altering and interfering with peptidyltransferase function. This dual mechanism results in a strong, double-interference effect on bacterial protein synthesis. As an inhibitor of peptidyltransferase activity, florfenicol offers a broad spectrum of action, effective against a wide range of Gram-negative and Gram-positive bacteria, as well as mycoplasma. Susceptible pathogens include Haemophilus parasuis, Pasteurella multocida, Shigella dysenteriae, Salmonella spp., Escherichia coli, Streptococcus pneumoniae, Haemophilus influenzae, Streptococcus spp., Staphylococcus aureus, Chlamydia, Leptospira, and Rickettsia.
Application:
- Effective against porcine pleuropneumonia (Actinobacillus pleuropneumoniae), streptococcal infections, Erysipelothrix rhusiopathiae, porcine reproductive and respiratory syndrome (PRRS)-associated secondary infections, and bacterial diarrhea in pigs.
- Used in poultry for treating infectious coryza, respiratory infections in pigs and cattle, bacterial rhinitis, avian chlamydiosis, avian Pasteurella infections, mastitis-hematic infection (MHA), salpingitis, and serositis.
- For aquatic species: treats bacterial enteritis, septicemia, red-skin syndrome, Vibrio infections, vertical scale edema disease, nodular disease, mixed salmonellosis in flounder, red spot disease, red gill inflammation, and bacterial dysentery in bullfrogs.
Packaging & Delivery:
- Orders of 1–20 kg: packed in foil bags inside master cartons, shipped via express courier.
- Orders of 20–25 kg: packed in drums or master cartons, shipped via express delivery.
- Orders exceeding 100 kg: shipped via sea freight for cost efficiency.
FAQ:
Can I request a free sample?
Yes, we provide complimentary samples of our products, including Florfenicol, for evaluation. However, shipping costs are to be covered by the recipient.What payment methods and terms do you accept?
We accept payments via bank transfer, credit card, Western Union, PayPal, and other secure platforms. Payment terms are typically based on your order evaluation.How does Extract Makers ensure consistent product quality?
With over a decade of industry experience, we have developed a robust quality control system. Every batch undergoes stringent pre-shipment testing to guarantee quality, purity, and consistency.Do you offer OEM services?
Yes, we support OEM orders. Simply reach out with your specifications, and we will provide a competitive quote and prepare samples promptly.How can I get in touch with Extract Makers?
You may contact us via email, WhatsApp, or phone. Our contact details are available on our official website.
Extract Makers supplies high-quality active pharmaceutical ingredients (APIs) and animal health solutions tailored to your needs. For questions or more information, please email us at: [email protected]










