Ontology mapping
- Primary identifier
-
CHEBI:17148 - Ontology label
- putrescine
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 (14)
| Synonym | Type | Source | Occurrences |
|---|---|---|---|
| Role: Nitrogen source; Properties: Defined component, Organic compound, Simple component | RAW_TEXT | CultureMech | |
| Role: Nitrogen source; Properties: Organic compound, Simple component, Defined component | RAW_TEXT | CultureMech | |
| 1,4-Butanediamine | EXACT_SYNONYM | kg_microbe | |
| 1,4-DIAMINOBUTANE | EXACT_SYNONYM | kg_microbe | |
| 1,4-butylenediamine | EXACT_SYNONYM | kg_microbe | |
| 1,4-tetramethylenediamine | EXACT_SYNONYM | kg_microbe | |
| Butane-1,4-diamine | EXACT_SYNONYM | kg_microbe | |
| H2N(CH2)4NH2 | EXACT_SYNONYM | kg_microbe | |
| Putrescin | EXACT_SYNONYM | kg_microbe | |
| Putreszin | EXACT_SYNONYM | kg_microbe | |
| Tetramethylendiamin | EXACT_SYNONYM | kg_microbe | |
| Tetramethylenediamine | EXACT_SYNONYM | kg_microbe | |
| butylenediamine | EXACT_SYNONYM | kg_microbe | |
| putrescina | EXACT_SYNONYM | kg_microbe |
Chemical properties
- Cas rn
- 110-60-1
- Data source
- PubChem API
- Retrieval date
- 2026-04-05T19:53:41.933532+00:00
- Molecular formula
- C4H12N2
- Inchi
- InChI=1S/C4H12N2/c5-3-1-2-4-6/h1-6H2
- Smiles
- NCCCCN
Evidence (1)
DATABASE_MATCH
via CultureMech
Imported from CultureMech pipeline, quality=DIRECT_MATCH
Occurrence statistics
- Total occurrences
- 8
- Distinct media
- 8
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 |
| 2026-04-05T19:53:41.933553+00:00 | fetch_cas_rn_from_pubchem | ADDED_CAS_RN | MAPPED | Added CAS-RN:110-60-1 from PubChem API via name lookup (Putrescine) |
| 2026-04-18T00:00:00+00:00 | cbclaw_kg_microbe_sweep LLM | ADDED_SYNONYMS | MAPPED | Added 12 synonyms from kg-microbe P4.4 enrichment: 1,4-Butanediamine, 1,4-DIAMINOBUTANE, 1,4-butylenediamine, 1,4-tetramethylenediamine, Butane-1,4-diamine, ... (7 more) |
| 2026-05-01T07:35:35.944570+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (CHEBI primary) | |
| 2026-05-01T08:08:32.035430+00:00 | auto_classify_ingredient_type | AUTO_BACKFILL_CHEBI_CHEMISTRY | molecular_formula=C4H12N2; inchi=InChI=1S/C4H12N2/c5-3-1-2-4-6/h1-6H2; smiles=NCCCCN | |
| 2026-05-02T03:12:17.956234+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula)) | |
| 2026-05-29T23:35:36.112657+00:00 | extract_roles_from_synonyms | ANNOTATED | Added media role: NITROGEN_SOURCE (confidence: 1.00) | |
| 2026-06-09T05:23:46.824265+00:00 | correct_stale_ontology_labels.py | CORRECTED | ontology_label 'Putrescine' -> 'putrescine': synced to canonical CHEBI label (preferred_term 'Putrescine' 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 | |
| 2026-08-27T03:16:39.519758+00:00 | refresh_occurrence_statistics | CORRECTED | occurrence_statistics 5/5 -> 8/8 (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] |