Name :Chloramphenicol
CAS: 56-75-7
MF: C11H12Cl2N2O5
MW: 323.13
EINECS: 200-287-4
Purity: 99%
Storage: Shading, Confined Preservation
Delivery: by DHL, TNT, FedEx, Hkems, UPS, etc.
Specification: USP
HS Code: 15347069687
Packing:Foil bag or Stealth package
Ship way :DHL ,Fedex , TNT, EMS ,UPS .
Payment terms :Western Union ,Money grams , Bank transfer ,Bitcoin
Delivery time :within 5 days after we receive your payment .

Usage :

Chloramphenicol is unusual nitroaromatic metabolite produced by Streptomyces venezuelae, first published in 1947. Chloramphenicol is a broad spectrum antibiotic with good activity against Gram negative and anaerobic bacteria. Although restricted to ocular use, antibiotic resistance to other classes has refocused attention on this class. Chloramphenicol acts by binding to the 23S sub-unit of the 50S ribosome, inhibiting protein synthesis. Chloramphenicol has been extensively studied with over 35,000 literature citations.


Test Items Specification Test Results
Characters Awhite to grayish-white or yellowish-white,fine crystalline powder or fine crystals,needles or elongated Qualified
Identification Meets the requirements Qualified
Melting range 149.0~153.0oC 149.0~151.5oC
PH 4.50~7.50(USP26)
Meets the requirements(BP2002,EP2002)
Specific optical +17.00o~+20.00o(USP26)
Related substances Meets the requirements Qualified
Chloride ≤100ppm(BP2002,EP2002) Qualified
Loss on drying ≤0.50%(BP2002,EP2002) 0.10%
Sulphated ash ≤0.10%(BP2002,EP2002) 0.04%
Crystallinity Meets the requirements(USP26) Qualified
Assay 97.00%~103.00%(USP26)
Conclusion Comply to the standard of BP2002,EP2002,USP26.

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