Ontology mapping
- Primary identifier
-
CHEBI:131378 - Ontology label
- ferrous ammonium sulfate heptahydrate
Nutritional roles
- Role
- TRACE_ELEMENT
- 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 (6)
| Synonym | Type | Source | Occurrences |
|---|---|---|---|
| Fe(NH4)2(SO4)2 . 7H2O | HYDRATE_FORM | kg_microbe | |
| Fe(NH4)2(SO4)2 x 7H2O | HYDRATE_FORM | kg_microbe | |
| Fe(NH4)2(SO4)2x7H2O | HYDRATE_FORM | kg_microbe | |
| Fe(NH4)2(SO4)2·7H2O | HYDRATE_FORM | kg_microbe | |
| ammonium iron(II) sulfate heptahydrate | EXACT_SYNONYM | kg_microbe | |
| ferrous ammonium sulfate heptahydrate | EXACT_SYNONYM | kg_microbe |
Chemical properties
- Molecular formula
- Fe.7H2O.2H4N.2O4S
- Inchi
- InChI=1S/Fe.2H3N.2H2O4S.7H2O/c;;;2*1-5(2,3)4;;;;;;;/h;2*1H3;2*(H2,1,2,3,4);7*1H2/q+2;;;;;;;;;;;/p-2
- Smiles
- O.O.O.O.O.O.O.O=S(=O)([O-])[O-].O=S(=O)([O-])[O-].[Fe+2].[NH4+].[NH4+]
- Data source
- CHEBI sqlite (oaklib)
Evidence (1)
DATABASE_MATCH
via CultureMech
Imported from CultureMech pipeline, quality=DIRECT_MATCH
Occurrence statistics
- Total occurrences
- 34
- Distinct media
- 34
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 |
| 2026-04-18T00:00:00+00:00 | cbclaw_kg_microbe_sweep LLM | ADDED_SYNONYMS | MAPPED | Added 6 synonyms from kg-microbe P4.4 enrichment: Fe(NH4)2(SO4)2 . 7H2O, Fe(NH4)2(SO4)2 x 7H2O, Fe(NH4)2(SO4)2x7H2O, Fe(NH4)2(SO4)2·7H2O, ammonium iron(II) sulfate heptahydrate, ... (1 more) |
| 2026-05-01T07:35:33.544775+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (CHEBI primary) | |
| 2026-05-01T08:08:29.524716+00:00 | auto_classify_ingredient_type | AUTO_BACKFILL_CHEBI_CHEMISTRY | molecular_formula=Fe.7H2O.2H4N.2O4S; inchi=InChI=1S/Fe.2H3N.2H2O4S.7H2O/c;;;2*1-5(2,3)4;;;;;;; smiles=O.O.O.O.O.O.O.O=S(=O)([O-])[O-].O=S(=O)([O-])[O-]. | |
| 2026-05-02T03:12:14.388728+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula)) | |
| 2026-06-09T04:56:30.247903+00:00 | claude_in_session_curation | ANNOTATED | Added media role: TRACE_ELEMENT (confidence: 0.60) | |
| 2026-06-09T05:23:46.763516+00:00 | correct_stale_ontology_labels.py | CORRECTED | ontology_label 'Fe(NH4)2(SO4)2 x 7 H2O' -> 'ferrous ammonium sulfate heptahydrate': synced to canonical CHEBI label (preferred_term 'Fe(NH4)2(SO4)2 x 7 H2O' unchanged). | |
| 2026-07-20T00:00:00+00:00 | migrate_media_roles_to_facets | ANNOTATED | Migrated legacy media_roles to role facets (#128): TRACE_ELEMENT -> nutritional_roles.TRACE_ELEMENT | |
| 2026-08-27T03:16:39.518825+00:00 | refresh_occurrence_statistics | CORRECTED | occurrence_statistics 17/17 -> 34/34 (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] |