Acivicin
An L-α-amino acid that is L-alanine in which the methyl group is replaced by a (5S)-3-chloro-4,5-dihydro-1,2-oxazol-5-yl group. A glutamine analogue antimetabolite, it interferes with glutamate metabolism and several glutamate-dependent synthetic enzymes. It is obtained as a fermentation product of Streptomyces sviceus bacteria. — ChEBI
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Identity & molecular properties
Source-linked values| CAS number | 42228-92-2 | ChEBI ↗ |
| Molecular formula | C5H7ClN2O3 | ChEBI ↗ |
| Molar mass | 178.575 g/mol | ChEBI ↗ |
| Monoisotopic mass | 178.01452 Da | ChEBI ↗ |
| Formal charge | 0 | ChEBI ↗ |
| ChEBI identifier | CHEBI:74545 | ChEBI ↗ |
Cross-source molecular data
PubChem| Molar mass | 178.57 g/mol | PubChem ↗ |
| Exact mass | 178.0145198 Da | PubChem ↗ |
| Computed XLogP | -2.7 | PubChem ↗ |
| Topological polar surface area (Ų) | 84.9 | PubChem ↗ |
| H-bond donors | 2 | PubChem ↗ |
| H-bond acceptors | 5 | PubChem ↗ |
| Rotatable bonds | 2 | 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 identifieracivicin(2S)-amino[(5S)-3-chloro-4,5-dihydro-1,2-oxazol-5-yl]acetic acidQAWIHIJWNYOLBE-OKKQSCSOSA-N[H][C@@]1([C@H](N)C(=O)O)CC(Cl)=NO1InChI=1S/C5H7ClN2O3/c6-3-1-2(11-8-3)4(7)5(9)10/h2,4H,1,7H2,(H,9,10)/t2-,4-/m0/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.
Mass ↔ amount of substance
Calculated from sourced massUses 178.575 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.