Ontology mapping
- Primary identifier
-
CHEBI:17151 - Ontology label
- xylitol
Nutritional roles
- Role
- CARBON_SOURCE
- Confidence
- 0.7
- Evidence
- Reference type
- COMPUTATIONAL_PREDICTION
- Reference text
- Inferred from CHEBI ancestry: subclass/has_role of CHEBI:16646 (carbohydrate)
- Curator note
- Provisional role inferred from CHEBI is_a/has_role closure; review recommended.
Synonyms (7)
| Synonym | Type | Source | Occurrences |
|---|---|---|---|
| (2R,3R,4S)-Pentane-1,2,3,4,5-pentaol | EXACT_SYNONYM | kg_microbe | |
| (2R,3r,4S)-pentane-1,2,3,4,5-pentol | EXACT_SYNONYM | kg_microbe | |
| D-XYLITOL | EXACT_SYNONYM | kg_microbe | |
| L-xylitol | EXACT_SYNONYM | kg_microbe | |
| Xylit | EXACT_SYNONYM | kg_microbe | |
| meso-xylitol | EXACT_SYNONYM | kg_microbe | |
| xylite | EXACT_SYNONYM | kg_microbe |
Chemical properties
- Cas rn
- 87-99-0
- Data source
- PubChem API
- Retrieval date
- 2026-04-05T19:54:15.789675+00:00
- Molecular formula
- C5H12O5
- Inchi
- InChI=1S/C5H12O5/c6-1-3(8)5(10)4(9)2-7/h3-10H,1-2H2/t3-,4+,5+
- Smiles
- OC[C@@H](O)[C@H](O)[C@@H](O)CO
Evidence (1)
DATABASE_MATCH
via CultureMech
Imported from CultureMech pipeline, quality=DIRECT_MATCH
Occurrence statistics
- Total occurrences
- 2
- Distinct media
- 2
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 |
| 2026-04-05T19:54:15.789704+00:00 | fetch_cas_rn_from_pubchem | ADDED_CAS_RN | MAPPED | Added CAS-RN:488-81-3 from PubChem API via name lookup (Xylitol) |
| 2026-04-18T00:00:00+00:00 | cbclaw_kg_microbe_sweep LLM | ADDED_SYNONYMS | MAPPED | Added 7 synonyms from kg-microbe P4.4 enrichment: (2R,3R,4S)-Pentane-1,2,3,4,5-pentaol, (2R,3r,4S)-pentane-1,2,3,4,5-pentol, D-XYLITOL, L-xylitol, Xylit, ... (2 more) |
| 2026-05-01T07:35:36.920222+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (CHEBI primary) | |
| 2026-05-01T08:08:33.009932+00:00 | auto_classify_ingredient_type | AUTO_BACKFILL_CHEBI_CHEMISTRY | molecular_formula=C5H12O5; inchi=InChI=1S/C5H12O5/c6-1-3(8)5(10)4(9)2-7/h3-10H,1-2H; smiles=OC[C@@H](O)[C@H](O)[C@@H](O)CO | |
| 2026-05-02T03:12:19.282322+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula)) | |
| 2026-05-30T00:34:39.728222+00:00 | infer_roles_from_chebi_ancestry | ANNOTATED | Added media role: CARBON_SOURCE (confidence: 0.70) | |
| 2026-06-09T05:23:46.851012+00:00 | correct_stale_ontology_labels.py | CORRECTED | ontology_label 'Xylitol' -> 'xylitol': synced to canonical CHEBI label (preferred_term 'Xylitol' 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 | |
| 2026-08-13T00:00:00+00:00 | fix_wrong_compound_cas | CORRECTED_WRONG_COMPOUND_CAS | cas_rn '488-81-3' -> '87-99-0' (#320). The recorded value denotes ribitol, a different pentitol — a different compound, not a different form of this one. Replaced with ChEBI's hasDbXref on CHEBI:17151, the term this record is already mapped to, so the new value comes from the existing mapping rather than a fresh lookup. | |
| 2026-08-27T03:16:39.520163+00:00 | refresh_occurrence_statistics | CORRECTED | occurrence_statistics 1/1 -> 2/2 (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] |