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Chloramphenicol

Also known as: Chloromycetin, Levomycetin, D-(-)-threo-1-p-nitrophenyl-2-dichloracetamido-1,3-propanediol, 2,2-dichloro-N-[(1R,2R)-1,3-dihydroxy-1-(4-nitrophenyl)propan-2-yl]acetamide, 2,2-dichloro-N-[2-hydroxy-1-(hydroxymethyl)-2-(4-nitrophenyl)ethyl]acetamide, CAF, Chlomin, Enicol, Mychel, Ambofen, Catilan, chloroamphenicol, i337a, u-6062

Chloramphenicol (CAS 56-75-7) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C11H12Cl2N2O5 and a molecular weight of 323.129 g/mol. Key properties include a melting point of 148-150 °C(lit.), a boiling point of 563.2±60.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 294.4±32.9 °C. It is classified under GHS with signal word Danger and hazard statements H350 — May cause cancer. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
56-75-7
Jingsj CID
J-37938-0
Molecular Formula
C11H12Cl2N2O5
Molecular Weight
323.129 g/mol
Category
Organohalogen Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point148-150 °C(lit.)
Boiling Point563.2±60.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point294.4±32.9 °C
Exact Mass322.012329
PSA115.38000
LogP1.62
Vapor Pressure0.0±1.6 mmHg at 25°C
Refractive Index1.623
Additional Property2.5 g/L (25 º C)

GHS Safety & Compliance

Health HazardSignal word: Danger
  • H350 — May cause cancer

Activity & Biological Data

Additional Information[1]. Jardetzky, O., Studies on the mechanism of action of chloramphenicol. I. The conformation of chlioramphenicol in solution. J Biol Chem, 1963. 238: p. 2498-508. [2]. Wolfe, A.D. and F.E. Hahn, Mode of Action of Chloramphenicol. Ix. Effects of Chloramphenicol Upon a Ribosomal Amino Acid Polymerization System and Its Binding to Bacterial Ribosome. Biochim Biophys Acta, 1965. 95: p. 146-55.

Customs & Trade Information

HS Code2941400000

Frequently Asked Questions

What is the CAS number of Chloramphenicol?

The CAS number of Chloramphenicol is 56-75-7.

What are the molecular formula and molecular weight of Chloramphenicol?

Chloramphenicol has molecular formula C11H12Cl2N2O5 and molecular weight 323.129 g/mol.

Is Chloramphenicol hazardous?

Chloramphenicol has GHS signal word Danger and hazard statements H350 — May cause cancer.

What are the upstream and downstream products of Chloramphenicol?

For Chloramphenicol, Upstream Products: Methyl dichloroacetate, 2-Amino-1-(4-nitrophenyl)-1,3-propanediol, 4-Nitrobenzaldehyde; Downstream Products: Chloramphenicol palmitate, Chloramphenicol succinate, 4-Nitrobenzaldehyde.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Chloramphenicol (CAS 56-75-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-37938-0 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.