Ontology mapping
- Primary identifier
-
CHEBI:62946 - Ontology label
- ammonium sulfate
- kg-microbe node
CHEBI:62946
Nutritional roles
- Role
- NITROGEN_SOURCE
- Confidence
- 1.0
- Evidence
- Reference text
- CultureMech database (1383 occurrences as 'Nitrogen source')
- Reference type
- DATABASE_ENTRY
- Url
- https://github.com/CultureBotAI/CultureMech
- Excerpt
- Role: Nitrogen source; Properties: Defined component, Inorganic compound, Simple component
- Curator note
- Widespread use in media formulations (1383 occurrences). High confidence based on 'Defined component' property.
Synonyms (17)
| 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: Inorganic compound, Simple component, Defined component | RAW_TEXT | CultureMech | |
| Role: Nitrogen source; Properties: Simple component, Defined component, Inorganic compound | RAW_TEXT | CultureMech | |
| (NH4)2 SO4 | EXACT_SYNONYM | kg_microbe | |
| (NH4)2S4 | EXACT_SYNONYM | kg_microbe | |
| Ammonium Sulfate | EXACT_SYNONYM | kg_microbe | |
| ammonium sulfate (2:1) | EXACT_SYNONYM | kg_microbe | |
| ammonium sulphate | EXACT_SYNONYM | kg_microbe | |
| diammonium sulfate | EXACT_SYNONYM | kg_microbe | |
| diazanium sulfate | EXACT_SYNONYM | kg_microbe | |
| mascagnite | EXACT_SYNONYM | kg_microbe | |
| sulfuric acid ammonium salt (1:2) | EXACT_SYNONYM | kg_microbe | |
| sulfuric acid, diammonium salt | EXACT_SYNONYM | kg_microbe | |
| sulphate of ammonia | EXACT_SYNONYM | kg_microbe | |
| (NH4)2SO4(Fisher A 702) | RAW_TEXT | merged_from_unmapped_duplicate_review_2026_05_11 |
Chemical properties
- Cas rn
- 7783-20-2
- Data source
- PubChem (via CHEBI:62946)
- Retrieval date
- 2026-04-09T00:32:50.689620+00:00
- Molecular formula
- 2H4N.O4S
- Inchi
- InChI=1S/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)
- Smiles
- O=S(=O)([O-])[O-].[NH4+].[NH4+]
Evidence (2)
DATABASE_MATCH
via CultureMech
Imported from CultureMech pipeline, quality=DIRECT_MATCH
Combined membership function and cluster analyses revealed that the optimal water and fertilizer conditions for promoting rabbiteye blueberry plant growth were the medium fertilizer-medium water [(NH4)2SO4:Ca(H2PO4)2:K2SO4 at 59:10:20 g plant-1; 2.5 L water plant-1], medium fertilizer-medium-high water [(NH4)2SO4:Ca(H2PO4)2:K2SO4 at 59:10:20 g plant-1; 3.75 L water plant-1], and high fertilizer-medium-high water [(NH4)2SO4:Ca(H2PO4)2:K2SO4 at 118:20:40 g plant-1; 3.75 L water plant-1] treatments
Auto-proposed; curator should rephrase or remove.
Occurrence statistics
- Total occurrences
- 1,807
- Distinct media
- 1,807
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 |
| 2026-04-05T19:51:06.360159+00:00 | fetch_cas_rn_from_pubchem | ADDED_CAS_RN | MAPPED | Added CAS-RN:7783-20-2 from PubChem API via name lookup (Ammonium sulfate) |
| 2026-04-05T21:48:44.732997+00:00 | fetch_cas_rn_from_culturebot_csv | ADDED_CAS_RN | MAPPED | Added CAS-RN:7783-20-2 from CultureBotHT compounds_to_cas.csv (matched: Ammonium Sulfate) |
| 2026-04-05T21:48:45.566551+00:00 | fetch_cas_rn_from_culturebot_csv | ADDED_CAS_RN | MAPPED | Added CAS-RN:7783-20-2 from CultureBotHT compounds_to_cas.csv (matched: (NH4)2S4) |
| 2026-04-09T00:32:50.689620+00:00 | enrich_mim_cas_rn_batch | CAS_RN_ADDED | MAPPED | Added CAS-RN 7783-20-2 from PubChem (via CHEBI:62946) |
| 2026-04-18T00:00:00+00:00 | cbclaw_kg_microbe_sweep LLM | ADDED_SYNONYMS | MAPPED | Added 11 synonyms from kg-microbe P4.4 enrichment: (NH4)2 SO4, (NH4)2S4, Ammonium Sulfate, ammonium sulfate (2:1), ammonium sulphate, ... (6 more) |
| 2026-04-18T00:00:00+00:00 | cbclaw_kg_microbe_sweep LLM | ADDED_SYNONYMS | MAPPED | Added 11 synonyms from kg-microbe P4.4 enrichment: (NH4)2 SO4, (NH4)2S4, (NH4)2SO4, ammonium sulfate (2:1), ammonium sulphate, ... (6 more) |
| 2026-04-18T00:00:00+00:00 | cbclaw_kg_microbe_sweep LLM | ADDED_SYNONYMS | MAPPED | Added 10 synonyms from kg-microbe P4.4 enrichment: (NH4)2 SO4, (NH4)2SO4, ammonium sulfate (2:1), ammonium sulphate, diammonium sulfate, ... (5 more) |
| 2026-04-19T07:39:23.955331+00:00 | audit_mim_merge | MERGED_FROM_DUPLICATES | MAPPED | Absorbed 3 duplicate MIM record(s) into this one: Ammonium_Sulfate.yaml, Ammonium_Sulfate_2.yaml, Nh42s4.yaml. Synonyms, curation_history, and occurrence counts were unioned/summed; winner selected by highest occurrence count with preferred_term readability tie-break. |
| 2026-05-01T07:35:35.467929+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (CHEBI primary) | |
| 2026-05-01T08:08:31.554827+00:00 | auto_classify_ingredient_type | AUTO_BACKFILL_CHEBI_CHEMISTRY | molecular_formula=2H4N.O4S; inchi=InChI=1S/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,; smiles=O=S(=O)([O-])[O-].[NH4+].[NH4+] | |
| 2026-05-01T08:09:48.051249+00:00 | auto_classify_ingredient_type | APPLY_EVIDENCE_PROPOSAL | added pmid=34228763 from propose-evidence batch | |
| 2026-05-02T03:12:17.334370+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula)) | |
| 2026-05-11T18:05:00Z | mediaingredientmech-agentic-curation LLM | ABSORBED_UNMAPPED_DUPLICATE | MAPPED | Absorbed duplicate unmapped record Original_Amount_Nh42so4_Fisher_A_702.yaml (UNMAPPED_0082); local mapped representative is ammonium sulfate CHEBI:62946 and the source synonym gives the same formula with a vendor catalog suffix. |
| 2026-05-29T23:35:36.112402+00:00 | extract_roles_from_synonyms | ANNOTATED | Added media role: NITROGEN_SOURCE (confidence: 1.00) | |
| 2026-06-09T05:23:46.811795+00:00 | correct_stale_ontology_labels.py | CORRECTED | ontology_label '(NH4)2SO4' -> 'ammonium sulfate': synced to canonical CHEBI label (preferred_term '(NH4)2SO4' 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 | |
| 2026-08-27T03:16:39.519594+00:00 | refresh_occurrence_statistics | CORRECTED | occurrence_statistics 115/1383 -> 1807/1807 (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] | |
| 2026-09-10T04:48:50Z | mediaingredientmech-agentic-curation LLM | CORRECTED | MAPPED | Removed stale CultureMech note text from synonyms: Original amount: (NH4)2SO4(Fisher A 702). The resolvable vendor form remains as (NH4)2SO4(Fisher A 702). |