Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
Beilstein/REAXYS Number:
EC Number:
MDL number:
PubChem Substance ID:



Quality Level


white to off-white


ethanol: soluble 50 mg/mL

Mode of action

protein synthesis | interferes

antibiotic activity spectrum

Gram-negative bacteria
Gram-positive bacteria

SMILES string




InChI key


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General description

Chemical structure: phenicole


Thiamphenicol is an antibiotic that has been used to treat chancroid in men and uncomplicated gonorrhea. It is used in studies of bacterial protein synthesis at the level of peptidyl transferase activity associated with the 23S rRNA of the 50S ribosomal subunit. It is used to study chloraniphenicol-thiamphenicol-resistance and the use of fluorinated analogs when resistance is encountered.

Biochem/physiol Actions

Thiamphenicol inhibits mitochondrial protein synthesis of proteins such as cytochrome c oxidase.



Other Notes

Keep container tightly closed in a dry and well-ventilated place.

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
Yang Wang et al.
The Journal of antimicrobial chemotherapy, 67(8), 1824-1827 (2012-05-12)
To investigate the presence and the genetic environment of the multiresistance gene cfr in Jeotgalicoccus pinnipedialis and Macrococcus caseolyticus from pigs. A total of 391 bacterial isolates with florfenicol MICs ≥16 mg/L were obtained from nasal swabs of 557 individual...
Kevin S Lang et al.
Applied and environmental microbiology, 78(9), 3379-3386 (2012-02-22)
The multidrug resistance-encoding plasmids belonging to the IncA/C incompatibility group have recently emerged among Escherichia coli and Salmonella enterica strains in the United States. These plasmids have a unique genetic structure compared to other enterobacterial plasmid types, a broad host...
D R Rezende et al.
Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment, 29(4), 559-570 (2012-01-14)
A validated method based on European and Brazilian legislation is reported. It is applicable to the simultaneous determination of chloramphenicol (CAP) and florfenicol (FF) by LC-MS/MS in liquid milk, milk powder and bovine muscle. The chromatographic analysis is completed in...
Yang Liu et al.
Antimicrobial agents and chemotherapy, 56(3), 1650-1654 (2011-12-29)
The multiresistance gene cfr was identified for the first time in an Enterococcus faecalis isolate of animal origin. The 32,388-bp plasmid pEF-01, which carried the cfr gene, was sequenced completely. Three copies of the insertion sequence IS1216 were identified in...
A S Latif
The British journal of venereal diseases, 58(1), 54-55 (1982-02-01)
Thiamphenicol was used to treat 547 men with chancroid. An oral dose of 2.5g was given on the first day and a further dose of 1.25g a week later if the lesions had not healed. Eighty-seven (15.9%) patients defaulted from...

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