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R4408 Sigma-Aldrich

Chloramphenicol

Ready Made Solution, 100 mg/mL in ethanol: isopropanol (95:5), ≥98% (HPLC)

Synonym: D-(-)-threo-2,2-Dichloro-N-[β-hydroxy-α−(hydroxymethyl)-β-(4-nitrophenyl)ethyl]acetamide, D-(-)-threo-2-Dichloroacetamido-1-(4-nitrophenyl)-1,3-propanediol, D-threo-2,2-Dichloro-N-[β-hydroxy-α-(hydroxymethyl)-4-nitrophenethyl]acetamide

  •  NACRES NA.85

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Properties

Quality Level   200
assay   ≥98% (HPLC)
form   solution
concentration   100 mg/mL in ethanol: isopropanol (95:5)
Mode of action   protein synthesis | interferes
antibiotic activity spectrum   Gram-negative bacteria
  Gram-positive bacteria
shipped in   dry ice
storage temp.   −20°C

Description

Application

Chloramphenicol is a synthetic antibiotic, isolated from strains of Streptomyces venezuelae. It is often used for bacterial selection in molecular biology applications at 10-20 μg/mL and as a selection agent for transformed cells containing chloramphenicol reistance genes.

Biochem/physiol Actions

Mode of Action: Chloramphenicol inhibits bacterial protein synthesis by blocking the peptidyl transferase step by binding to the 50S ribosomal subunit and preventing attachment of aminoacyl tRNA to the ribosome. It also inhibits mitochondrial and chloroplast protein synthesis and ribosomal formation of (p)ppGpp, de-pressing rRNA transcription.

Mode of Resistance: Use of chloramphenicol acetyltransferase will acetylate the product and inactivate it.

Antimicrobial Spectrum: This is a broad spectrum antibiotic against gram-positive and gram-negative bacteria, and is used mainly for ophthalmic and veterinary purposes.

Packaging

10ml

Preparation Note

This product is a ready made solution of 100 mg/mL in ethanol:isopropanol (95:5). It is shipped in dry ice and stored at -20°C.

Other Notes

Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage.Storage class (TRGS 510): Flammable liquids")

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
RIDADR 
UN1170 - class 3 - PG 2 - Ethanol, solution
WGK Germany 
WGK 3
Flash Point(F) 
57.2 °F - closed cup
Flash Point(C) 
14.0 °C - closed cup

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles
Peer-Reviewed Papers
15

References

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