Ontology mapping
- Primary identifier
-
CHEBI:45296 - Ontology label
- hexadecane
- kg-microbe node
CHEBI:45296
Nutritional roles
- Role
- CARBON_SOURCE
- Confidence
- 0.6
- Evidence
- Reference type
- COMPUTATIONAL_PREDICTION
- Reference text
- Assigned by in-session Claude reasoning (no external API)
- Curator note
- Provisional in-session LLM role assignment; review recommended.
Synonyms (8)
| Synonym | Type | Source | Occurrences |
|---|---|---|---|
| Role: Carbon source | RAW_TEXT | CultureMech | |
| CH3-[CH2]14-CH3 | EXACT_SYNONYM | kg_microbe | |
| Cetan | EXACT_SYNONYM | kg_microbe | |
| Hexadekan | EXACT_SYNONYM | kg_microbe | |
| Zetan | EXACT_SYNONYM | kg_microbe | |
| cetane | EXACT_SYNONYM | kg_microbe | |
| n-cetane | EXACT_SYNONYM | kg_microbe | |
| n-hexadecane | EXACT_SYNONYM | kg_microbe |
Chemical properties
- Cas rn
- 544-76-3
- Data source
- PubChem API
- Retrieval date
- 2026-04-05T19:52:23.801591+00:00
- Molecular formula
- C16H34
- Inchi
- InChI=1S/C16H34/c1-3-5-7-9-11-13-15-16-14-12-10-8-6-4-2/h3-16H2,1-2H3
- Smiles
- CCCCCCCCCCCCCCCC
Evidence (1)
DATABASE_MATCH
via CultureMech
Imported from CultureMech pipeline, quality=DIRECT_MATCH
Occurrence statistics
- Total occurrences
- 21
- Distinct media
- 21
Curation history
| Timestamp | Curator | Action | New status | Changes |
|---|---|---|---|---|
| 2026-03-09T06:54:18.022301+00:00 | import_from_culturemech | IMPORTED | MAPPED | Initial import from CultureMech pipeline |
| 2026-04-05T19:52:23.801677+00:00 | fetch_cas_rn_from_pubchem | ADDED_CAS_RN | MAPPED | Added CAS-RN:544-76-3 from PubChem API via name lookup (Hexadecane) |
| 2026-04-18T00:00:00+00:00 | cbclaw_kg_microbe_sweep LLM | ADDED_SYNONYMS | MAPPED | Added 7 synonyms from kg-microbe P4.4 enrichment: CH3-[CH2]14-CH3, Cetan, Hexadekan, Zetan, cetane, ... (2 more) |
| 2026-05-01T07:35:33.979655+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (CHEBI primary) | |
| 2026-05-01T08:08:29.954746+00:00 | auto_classify_ingredient_type | AUTO_BACKFILL_CHEBI_CHEMISTRY | molecular_formula=C16H34; inchi=InChI=1S/C16H34/c1-3-5-7-9-11-13-15-16-14-12-10-8-; smiles=CCCCCCCCCCCCCCCC | |
| 2026-05-02T03:12:14.980521+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula)) | |
| 2026-06-09T04:56:30.247961+00:00 | claude_in_session_curation | ANNOTATED | Added media role: CARBON_SOURCE (confidence: 0.60) | |
| 2026-06-09T05:23:46.774264+00:00 | correct_stale_ontology_labels.py | CORRECTED | ontology_label 'Hexadecane' -> 'hexadecane': synced to canonical CHEBI label (preferred_term 'Hexadecane' unchanged). | |
| 2026-07-20T00:00:00+00:00 | migrate_media_roles_to_facets | ANNOTATED | Migrated legacy media_roles to role facets (#128): CARBON_SOURCE -> nutritional_roles.CARBON_SOURCE | |
| 2026-08-27T03:16:39.518995+00:00 | refresh_occurrence_statistics | CORRECTED | occurrence_statistics 17/17 -> 21/21 (media_count/total_occurrences), derived from distinct CultureMech recipe ids in the #337 occurrence table. The prior values came from the importer retired in #453, whose media_count counted a list truncated to 50 examples (#449). [source=ingredient_occurrences.tsv culturemech_rev=15a4da5c08 rows=194137 distinct_recipes=15257] |