Ontology mapping
- Primary identifier
-
CHEBI:45285 - Ontology label
- pyrazinecarboxamide
Synonyms (1)
| Synonym | Type | Source | Occurrences |
|---|---|---|---|
| PYRAZINE-2-CARBOXAMIDE | EXACT_SYNONYM | chebi_synonym_review |
Chemical properties
- Cas rn
- 98-96-4
- Data source
- CultureBotHT compounds_to_cas.csv
- Retrieval date
- 2026-04-29T06:34:31.158938+00:00
- Molecular formula
- C5H5N3O
- Inchi
- InChI=1S/C5H5N3O/c6-5(9)4-3-7-1-2-8-4/h1-3H,(H2,6,9)
- Smiles
- NC(=O)c1cnccn1
Evidence (1)
DATABASE_MATCH
via CultureBotHT
Imported from CultureBotHT. CAS-RN→CHEBI mapping resolved via OAK CHEBI sqlite (cas xref).
Occurrence statistics
- Total occurrences
- 0
- Distinct media
- 0
Curation history
| Timestamp | Curator | Action | New status | Changes |
|---|---|---|---|---|
| 2026-04-29T06:34:31.158938+00:00 | audit_cas_chebi_followup | CREATED_FROM_CAS_LOOKUP | MAPPED | Created from CultureBotHT CAS-RN=98-96-4; CHEBI resolved via OAK CHEBI sqlite (cas xref); Imported from CultureBotHT. CAS-RN→CHEBI mapping resolved via OAK CHEBI sqlite (cas xref). |
| 2026-05-01T07:35:35.952557+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (CHEBI primary) | |
| 2026-05-01T08:08:32.042819+00:00 | auto_classify_ingredient_type | AUTO_BACKFILL_CHEBI_CHEMISTRY | molecular_formula=C5H5N3O; inchi=InChI=1S/C5H5N3O/c6-5(9)4-3-7-1-2-8-4/h1-3H,(H2,6,; smiles=NC(=O)c1cnccn1 | |
| 2026-05-02T03:12:17.967078+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula)) | |
| 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 'pyrazinecarboxamide'; it matches the ChEBI synonym 'pyrazinamide' on CHEBI:45285. 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). | |
| 2026-08-24T00:00:00+00:00 | regrade_synonym_matches | REGRADED_TO_CAS_RN_LOOKUP | mapping_quality SYNONYM_MATCH -> CAS_RN_LOOKUP (#317). The record was created by an explicit CAS-to-ChEBI lookup and its current CAS RN 98-96-4 uniquely resolves by ChEBI xref to CHEBI:45285 'pyrazinecarboxamide'. CAS_RN_LOOKUP records the method that established this mapping; a lexical grade would discard that provenance. ontology_id is unchanged. The own-identifier SSSOM predicate remains skos:exactMatch under Rule D (#438), independently of mapping quality. |