Chloramphenicol
An organochlorine compound that is dichloro-substituted acetamide containing a nitrobenzene ring, an amide bond and two alcohol functions. — ChEBI
Safety documents & references
1 indexed referencesFind a product-specific SDS
Safety guides and government classification records are not a manufacturer’s SDS. Match supplier, product number, concentration, physical form, region and revision before using a document.
Identity & molecular properties
Source-linked values| CAS number | 56-75-7 | ChEBI ↗ |
| Molecular formula | C11H12Cl2N2O5 | ChEBI ↗ |
| Molar mass | 323.132 g/mol | ChEBI ↗ |
| Monoisotopic mass | 322.01233 Da | ChEBI ↗ |
| Formal charge | 0 | ChEBI ↗ |
| ChEBI identifier | CHEBI:17698 | ChEBI ↗ |
Cross-source molecular data
PubChem| Molar mass | 323.13 g/mol | PubChem ↗ |
| Exact mass | 322.0123269 Da | PubChem ↗ |
| Computed XLogP | 1.1 | PubChem ↗ |
| Topological polar surface area (Ų) | 115 | PubChem ↗ |
| H-bond donors | 3 | PubChem ↗ |
| H-bond acceptors | 5 | PubChem ↗ |
| Rotatable bonds | 5 | PubChem ↗ |
PubChem computed values are shown separately from the ChEBI record. An exact InChIKey match was used to connect the records. Molecular descriptors do not describe a supplied product’s purity, particle size or performance.
Names & structural identifiers
Copy any identifierchloramphenicol2,2-dichloro-N-[(1R,2R)-2-hydroxy-1-(hydroxymethyl)-2-(4-nitrophenyl)ethyl]acetamideWIIZWVCIJKGZOK-RKDXNWHRSA-NO=C(N[C@H](CO)[C@H](O)c1ccc([N+](=O)[O-])cc1)C(Cl)ClInChI=1S/C11H12Cl2N2O5/c12-10(13)11(18)14-8(5-16)9(17)6-1-3-7(4-2-6)15(19)20/h1-4,8-10,16-17H,5H2,(H,14,18)/t8-,9-/m1/s1Names & synonyms
Names are supplied by ChEBI. Trade names and related synonyms may describe a broader product context.
Classification & relationships
ChEBI ontologyRoles recorded in ChEBI
Database role annotations describe reported biological or chemical roles; they are not product approvals or recommendations for use.
Safety classification · Japan
NITE / Japanese government2,2-Dichloro-N-[2-hydroxy-1-(hydroxymethyl)-2-(4-nitrophenyl)ethyl]acetamide; Chloramphenicol · R02-B-069-MHLW, MOE
| Endpoint | Reported classification |
|---|---|
| Germ cell mutagenicity | Category 2 |
| Carcinogenicity | Category 1B |
| Reproductive toxicity | Category 1B |
| Specific target organ toxicity - Repeated exposure | Category 1 (hematopoietic system, nervous system, circulatory system, digestive organ) |
| Hazardous to the aquatic environment （Acute） | Category 1 |
| Hazardous to the aquatic environment （Long-term） | Category 1 |
Selected source-reported endpoints. Other endpoints, rationales and conditions remain in the original classification. Missing or unlisted information does not mean non-hazardous. This is not a global classification or transport decision.
Read the original NITE classificationMass ↔ amount of substance
Calculated from sourced massUses 323.132 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.
Elemental composition
Theoretical mass fractionsCOClNHCalculated theoretical mass fractions from the reported formula and PubChem periodic-table atomic masses. These are not assay or purity results.
Research & patent references
Selected source associationsSources & record history
Checked 27 Sep 2026Release 255, 9 September 2026. ChEBI three-star (manually annotated) source entry. View original record ↗ · CC BY 4.0
PubCAS formats source data, connects references and computes explicitly labelled conversions. CAS cross-references are supplied by ChEBI; they do not constitute CAS verification or endorsement.