Ontology mapping
- Primary identifier
-
CHEBI:16545 - Ontology label
- 5-valerolactone
Synonyms (1)
| Synonym | Type | Source | Occurrences |
|---|---|---|---|
| tetrahydro-2H-pyran-2-one | EXACT_SYNONYM | chebi_synonym_review |
Chemical properties
- Cas rn
- 542-28-9
- Data source
- CultureBotHT compounds_to_cas.csv
- Retrieval date
- 2026-04-29T06:34:31.158938+00:00
- Molecular formula
- C5H8O2
- Inchi
- InChI=1S/C5H8O2/c6-5-3-1-2-4-7-5/h1-4H2
- Smiles
- O=C1CCCCO1
Evidence (1)
DATABASE_MATCH
via CultureBotHT
Imported from CultureBotHT. CAS-RN→CHEBI mapping resolved via OAK CHEBI sqlite (cas xref).
Occurrence statistics
- Total occurrences
- 0
- Distinct media
- 0
Curation history
| Timestamp | Curator | Action | New status | Changes |
|---|---|---|---|---|
| 2026-04-29T06:34:31.158938+00:00 | audit_cas_chebi_followup | CREATED_FROM_CAS_LOOKUP | MAPPED | Created from CultureBotHT CAS-RN=542-28-9; CHEBI resolved via OAK CHEBI sqlite (cas xref); Imported from CultureBotHT. CAS-RN→CHEBI mapping resolved via OAK CHEBI sqlite (cas xref). |
| 2026-05-01T07:35:36.832788+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (CHEBI primary) | |
| 2026-05-01T08:08:32.919751+00:00 | auto_classify_ingredient_type | AUTO_BACKFILL_CHEBI_CHEMISTRY | molecular_formula=C5H8O2; inchi=InChI=1S/C5H8O2/c6-5-3-1-2-4-7-5/h1-4H2; smiles=O=C1CCCCO1 | |
| 2026-05-02T03:12:19.154339+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula)) | |
| 2026-08-24T00:00:00+00:00 | regrade_synonym_matches | REGRADED_TO_CAS_RN_LOOKUP | mapping_quality EXACT_MATCH -> CAS_RN_LOOKUP (#317). The record was created by an explicit CAS-to-ChEBI lookup and its current CAS RN 542-28-9 uniquely resolves by ChEBI xref to CHEBI:16545 '5-valerolactone'. CAS_RN_LOOKUP records the method that established this mapping; a lexical grade would discard that provenance. ontology_id is unchanged. The own-identifier SSSOM predicate remains skos:exactMatch under Rule D (#438), independently of mapping quality. |