Ontology mapping
- Primary identifier
-
CHEBI:78870 - Ontology label
- sodium nitrite
- kg-microbe node
CHEBI:78870
Nutritional roles
- Role
- NITROGEN_SOURCE
- Confidence
- 1.0
- Evidence
- Reference type
- DATABASE_ENTRY
- Reference text
- Imported from CultureMech pipeline
- Curator note
- Original role text: Nitrogen Source
Synonyms (8)
| Synonym | Type | Source | Occurrences |
|---|---|---|---|
| Role: Nitrogen source; Properties: Defined component, Inorganic compound, Simple component | RAW_TEXT | CultureMech | |
| Role: Nitrogen source; Properties: Defined component, Simple component, Inorganic compound | RAW_TEXT | CultureMech | |
| Role: Nitrogen source; Properties: Inorganic compound, Defined component, Simple component | RAW_TEXT | CultureMech | |
| Role: Nitrogen source; Properties: Simple component, Inorganic compound, Defined component | RAW_TEXT | CultureMech | |
| Natrium nitrit | EXACT_SYNONYM | kg_microbe | |
| Nitrite de sodium | EXACT_SYNONYM | kg_microbe | |
| Nitrito sodico | EXACT_SYNONYM | kg_microbe | |
| sodium nitrite | EXACT_SYNONYM | kg_microbe |
Chemical properties
- Cas rn
- 7632-00-0
- Data source
- PubChem API
- Retrieval date
- 2026-04-05T19:53:28.527208+00:00
- Molecular formula
- NO2.Na
- Inchi
- InChI=1S/HNO2.Na/c2-1-3;/h(H,2,3);/q;+1/p-1
- Smiles
- O=N[O-].[Na+]
Evidence (1)
DATABASE_MATCH
via CultureMech
Imported from CultureMech pipeline, quality=DIRECT_MATCH
Occurrence statistics
- Total occurrences
- 30
- Distinct media
- 30
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 |
| 2026-04-05T19:53:28.527249+00:00 | fetch_cas_rn_from_pubchem | ADDED_CAS_RN | MAPPED | Added CAS-RN:7632-00-0 from PubChem API via name lookup (NaNO2) |
| 2026-04-18T00:00:00+00:00 | cbclaw_kg_microbe_sweep LLM | ADDED_SYNONYMS | MAPPED | Added 4 synonyms from kg-microbe P4.4 enrichment: Natrium nitrit, Nitrite de sodium, Nitrito sodico, sodium nitrite |
| 2026-05-01T07:35:35.396661+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (CHEBI primary) | |
| 2026-05-01T08:08:31.478111+00:00 | auto_classify_ingredient_type | AUTO_BACKFILL_CHEBI_CHEMISTRY | molecular_formula=NO2.Na; inchi=InChI=1S/HNO2.Na/c2-1-3;/h(H,2,3);/q;+1/p-1; smiles=O=N[O-].[Na+] | |
| 2026-05-02T03:12:17.244395+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula)) | |
| 2026-05-29T23:35:36.112343+00:00 | extract_roles_from_synonyms | ANNOTATED | Added media role: NITROGEN_SOURCE (confidence: 1.00) | |
| 2026-06-09T05:23:46.810009+00:00 | correct_stale_ontology_labels.py | CORRECTED | ontology_label 'NaNO2' -> 'sodium nitrite': synced to canonical CHEBI label (preferred_term 'NaNO2' unchanged). | |
| 2026-07-20T00:00:00+00:00 | migrate_media_roles_to_facets | ANNOTATED | Migrated legacy media_roles to role facets (#128): NITROGEN_SOURCE -> nutritional_roles.NITROGEN_SOURCE | |
| 2026-08-27T03:16:39.519554+00:00 | refresh_occurrence_statistics | CORRECTED | occurrence_statistics 23/23 -> 30/30 (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] |