Ontology mapping
- Primary identifier
-
CHEBI:16347 - Ontology label
- (R)-carnitine
- Notes
- Imported from CultureBotHT (consolidated_media.json (media-only)). Used in 2 CultureBot media; samples: Ying_Others16, Ying_all64. No CAS-RN or CHEBI mapping available; curator review needed.
Nutritional roles
- Role
- VITAMIN_SOURCE
- Confidence
- 0.7
- Evidence
- Reference type
- COMPUTATIONAL_PREDICTION
- Reference text
- Inferred from CHEBI ancestry: subclass/has_role of CHEBI:33229 (vitamin (role))
- Curator note
- Provisional role inferred from CHEBI is_a/has_role closure; review recommended.
Synonyms (2)
| Synonym | Type | Source | Occurrences |
|---|---|---|---|
| L-Carnitine | RAW_TEXT | culturebotht | |
| (3R)-3-hydroxy-4-(trimethylammonio)butanoate | EXACT_SYNONYM | chebi_synonym_review |
Chemical properties
- Molecular formula
- C7H15NO3
- Inchi
- InChI=1S/C7H15NO3/c1-8(2,3)5-6(9)4-7(10)11/h6,9H,4-5H2,1-3H3
- Smiles
- C[N+](C)(C)CC(O)CC(=O)[O-]
- Data source
- CHEBI sqlite (oaklib)
Evidence (2)
DATABASE_MATCH
via CHEBI via OLS search (resolve_unmapped)
Auto-upgraded from UNMAPPED_0304; matched via 'Carnitine' (name normalization); label-exact
CURATOR_JUDGMENT
via fix_stereoisomer_remaps
Re-mapped from achiral CHEBI:17126 to stereospecific CHEBI:16347 ((R)-carnitine); the prior auto-upgrade collapsed the stereo prefix to the generic parent.
Occurrence statistics
- Total occurrences
- 2
- Distinct media
- 2
Curation history
| Timestamp | Curator | Action | New status | Changes |
|---|---|---|---|---|
| 2026-04-29T06:51:33.117170+00:00 | audit_add_remaining_culturebotht | CREATED_AS_UNMAPPED | UNMAPPED | Imported from CultureBotHT (consolidated_media.json (media-only)). Used in 2 CultureBot media; samples: Ying_Others16, Ying_all64. No CAS-RN or CHEBI mapping available; curator review needed. |
| 2026-05-02T00:41:18.417174+00:00 | resolve_unmapped | AUTO_UPGRADE_TO_CHEBI | primary UNMAPPED_0304 → CHEBI:17126 via name normalization to 'Carnitine' | |
| 2026-05-02T03:12:15.373417+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (CHEBI primary) | |
| 2026-05-02T23:59:51.254047+00:00 | auto_classify_ingredient_type | AUTO_BACKFILL_CHEBI_CHEMISTRY | molecular_formula=C7H15NO3; inchi=InChI=1S/C7H15NO3/c1-8(2,3)5-6(9)4-7(10)11/h6,9H,4; smiles=C[N+](C)(C)CC(O)CC(=O)[O-] | |
| 2026-06-02T07:01:19.251685+00:00 | fix_stereoisomer_remaps | CORRECTED | identifier CHEBI:17126 -> CHEBI:16347: enantiomer was sharing an achiral CHEBI parent with its mirror image. | |
| 2026-06-14T06:54:43.158432+00:00 | infer_roles_from_chebi_ancestry | ANNOTATED | Added media role: VITAMIN_SOURCE (confidence: 0.70) | |
| 2026-07-20T00:00:00+00:00 | migrate_media_roles_to_facets | ANNOTATED | Migrated legacy media_roles to role facets (#128): VITAMIN_SOURCE -> nutritional_roles.VITAMIN_SOURCE | |
| 2026-08-24T00:00:00+00:00 | regrade_synonym_matches | REGRADED_EXACT_TO_SYNONYM | mapping_quality EXACT_MATCH -> SYNONYM_MATCH (#317). The record's label does not equal the term's primary label '(R)-carnitine'; preferred_term 'L-Carnitine' matches the ChEBI synonym 'L-Carnitine' on CHEBI:16347. The schema defines EXACT_MATCH as a direct match to the term and SYNONYM_MATCH as a match to a known synonym, so the recorded grade overstated. ontology_id is unchanged — the term is correct. The own-identifier SSSOM predicate remains skos:exactMatch under Rule D (#438), independently of mapping quality. |