Ontology mapping
- Primary identifier
-
CHEBI:75456 - Ontology label
- 2-stearoylglycerol
- kg-microbe node
CHEBI:75456
Physicochemical roles
- Role
- SURFACTANT
- 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 |
|---|---|---|---|
| Properties: Defined component, Organic compound, Simple component | RAW_TEXT | CultureMech | |
| 1,3-dihydroxypropan-2-yl octadecanoate | EXACT_SYNONYM | kg_microbe | |
| 1,3-dihydroxypropan-2-yl stearate | EXACT_SYNONYM | kg_microbe | |
| 2-octadecanoylglycerol | EXACT_SYNONYM | kg_microbe | |
| 2-octadecanoyloxy-propane-1,3-diol | EXACT_SYNONYM | kg_microbe | |
| 2-stearoyloxy-propane-1,3-diol | EXACT_SYNONYM | kg_microbe | |
| MG (0:0/18:0/0:0) | EXACT_SYNONYM | kg_microbe | |
| glycerine monostearate | EXACT_SYNONYM | kg_microbe |
Chemical properties
- Cas rn
- 31566-31-1
- Data source
- PubChem API
- Retrieval date
- 2026-04-05T19:52:18.464280+00:00
- Molecular formula
- C21H42O4
- Inchi
- InChI=1S/C21H42O4/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-21(24)25-20(18-22)19-23/h20,22-23H,2-19H2,1H3
- Smiles
- CCCCCCCCCCCCCCCCCC(=O)OC(CO)CO
Evidence (1)
DATABASE_MATCH
via CultureMech
Imported from CultureMech pipeline, quality=DIRECT_MATCH
Occurrence statistics
- Total occurrences
- 5
- Distinct media
- 5
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 |
| 2026-04-05T19:52:18.464308+00:00 | fetch_cas_rn_from_pubchem | ADDED_CAS_RN | MAPPED | Added CAS-RN:31566-31-1 from PubChem API via name lookup (Glycerol monostearate) |
| 2026-04-18T00:00:00+00:00 | cbclaw_kg_microbe_sweep LLM | ADDED_SYNONYMS | MAPPED | Added 7 synonyms from kg-microbe P4.4 enrichment: 1,3-dihydroxypropan-2-yl octadecanoate, 1,3-dihydroxypropan-2-yl stearate, 2-octadecanoylglycerol, 2-octadecanoyloxy-propane-1,3-diol, 2-stearoyloxy-propane-1,3-diol, ... (2 more) |
| 2026-05-01T07:35:33.835387+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (CHEBI primary) | |
| 2026-05-01T08:08:29.799984+00:00 | auto_classify_ingredient_type | AUTO_BACKFILL_CHEBI_CHEMISTRY | molecular_formula=C21H42O4; inchi=InChI=1S/C21H42O4/c1-2-3-4-5-6-7-8-9-10-11-12-13-1; smiles=CCCCCCCCCCCCCCCCCC(=O)OC(CO)CO | |
| 2026-05-02T03:12:14.768291+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula)) | |
| 2026-06-09T04:56:30.247934+00:00 | claude_in_session_curation | ANNOTATED | Added media role: SURFACTANT (confidence: 0.60) | |
| 2026-07-20T00:00:00+00:00 | migrate_media_roles_to_facets | ANNOTATED | Migrated legacy media_roles to role facets (#128): SURFACTANT -> physicochemical_roles.SURFACTANT | |
| 2026-08-10T00:00:00+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 '2-stearoylglycerol'; it matches the ChEBI synonym 'glycerol monostearate' on CHEBI:75456. 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 SSSOM predicate is unaffected (both grades emit skos:exactMatch). | |
| 2026-08-27T03:16:39.518950+00:00 | refresh_occurrence_statistics | CORRECTED | occurrence_statistics 4/4 -> 5/5 (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] |