(NH4)2Ni(SO4)2

CHEBI:86149 chemically defined MAPPED CHEBI SYNONYM_MATCH

Ontology mapping

Primary identifier
CHEBI:86149
Ontology label
ammonium nickel sulfate hexahydrate

Nutritional roles

Synonyms (3)

SynonymTypeSourceOccurrences
(NH4)2Ni(SO4)2•6H2O HYDRATE_FORM kg_microbe
ammonium nickel(2+) sulfate--water (2/1/2/6) EXACT_SYNONYM kg_microbe
(NH4)2Ni(SO4)2 x 6 H2O (0.1% w/v) RAW_TEXT sssom_other_backfill

Chemical properties

Cas rn
56110-30-6
Data source
PubChem (via CHEBI:86149)
Retrieval date
2026-04-09T00:32:50.689620+00:00
Molecular formula
6H2O.2H4N.Ni.2O4S
Inchi
InChI=1S/2H3N.Ni.2H2O4S.6H2O/c;;;2*1-5(2,3)4;;;;;;/h2*1H3;;2*(H2,1,2,3,4);6*1H2/q;;+2;;;;;;;;/p-2
Smiles
O.O.O.O.O.O.O=S(=O)([O-])[O-].O=S(=O)([O-])[O-].[NH4+].[NH4+].[Ni+2]

Evidence (1)

DATABASE_MATCH via CultureMech

Imported from CultureMech pipeline, quality=DIRECT_MATCH

Occurrence statistics

Total occurrences
150
Distinct media
150

Curation history

TimestampCuratorActionNew statusChanges
2026-03-09T06:54:18.022301+00:00 import_from_culturemech IMPORTED MAPPED Initial import from CultureMech pipeline
2026-04-09T00:32:50.689620+00:00 enrich_mim_cas_rn_batch CAS_RN_ADDED MAPPED Added CAS-RN 56110-30-6 from PubChem (via CHEBI:86149)
2026-04-18T00:00:00+00:00 cbclaw_kg_microbe_sweep LLM ADDED_SYNONYMS MAPPED Added 2 synonyms from kg-microbe P4.4 enrichment: (NH4)2Ni(SO4)2•6H2O, ammonium nickel(2+) sulfate--water (2/1/2/6)
2026-05-01T07:35:35.453638+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-05-01T08:08:31.540840+00:00 auto_classify_ingredient_type AUTO_BACKFILL_CHEBI_CHEMISTRY molecular_formula=6H2O.2H4N.Ni.2O4S; inchi=InChI=1S/2H3N.Ni.2H2O4S.6H2O/c;;;2*1-5(2,3)4;;;;;;; smiles=O.O.O.O.O.O.O=S(=O)([O-])[O-].O=S(=O)([O-])[O-].[N
2026-05-02T03:12:17.318203+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula))
2026-06-09T04:56:30.248109+00:00 claude_in_session_curation ANNOTATED Added media role: TRACE_ELEMENT (confidence: 0.60)
2026-06-09T05:23:46.811604+00:00 correct_stale_ontology_labels.py CORRECTED ontology_label '(NH4)2Ni(SO4)2' -> 'ammonium nickel sulfate hexahydrate': synced to canonical CHEBI label (preferred_term '(NH4)2Ni(SO4)2' 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
2026-08-10T00:00:00+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 'ammonium nickel sulfate hexahydrate'; it matches the ChEBI synonym '(NH4)2Ni(SO4)2.6H2O' on CHEBI:86149. 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).
2026-08-27T03:16:39.519589+00:00 refresh_occurrence_statistics CORRECTED occurrence_statistics 12/12 -> 150/150 (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]
2026-09-02T17:40:44.716277+00:00 claude_sssom_surface_form_backfill ADDED_SYNONYMS Recovered 1 surface form(s) that the published SSSOM `other` carried but no curated record did, so a rebuild would have dropped them from KGX: '(NH4)2Ni(SO4)2 x 6 H2O (0.1% w/v)'. Tokens already present on the kg-microbe ontology node were left out as redundant (#520).