NiSO4 x 6 H2O

CHEBI:53437 chemically defined REJECTED CHEBI EXACT_MATCH

Ontology mapping

Primary identifier
CHEBI:53437
Ontology label
nickel sulfate hexahydrate

Nutritional roles

Synonyms (3)

SynonymTypeSourceOccurrences
NiSO4 . 6H2O HYDRATE_FORM kg_microbe
NiSO4·6H2O HYDRATE_FORM kg_microbe
NiSO4・6H2O HYDRATE_FORM kg_microbe

Rejected enrichment labels (3)

Provenance-only candidates: these are not synonyms and do not resolve to this record.

Rejected labelDispositionSourceOccurrences
NiSO4 x 7 H2O REJECTED_LABEL kg_microbe
NiSO4・7H2O REJECTED_LABEL kg_microbe
nickel(2+) sulfate REJECTED_LABEL chebi_synonym_review

Chemical properties

Cas rn
10101-97-0
Data source
CultureBotHT/compounds_to_cas.csv
Retrieval date
2026-04-09T00:32:50.689620+00:00
Molecular formula
Ni.O4S
Inchi
InChI=1S/Ni.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
Smiles
O=S(=O)([O-])[O-].[Ni+2]

Evidence (1)

DATABASE_MATCH via CultureMech

Imported from CultureMech pipeline, quality=DIRECT_MATCH

Occurrence statistics

Total occurrences
0
Distinct media
0

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 10101-97-0 from CultureBotHT/compounds_to_cas.csv
2026-04-18T00:00:00+00:00 cbclaw_kg_microbe_sweep LLM ADDED_SYNONYMS MAPPED Added 5 synonyms from kg-microbe P4.4 enrichment: NiSO4 . 6H2O, NiSO4 x 7 H2O, NiSO4·6H2O, NiSO4・6H2O, NiSO4・7H2O
2026-05-01T07:35:35.570633+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-05-01T08:08:31.671900+00:00 auto_classify_ingredient_type AUTO_BACKFILL_CHEBI_CHEMISTRY molecular_formula=Ni.O4S; inchi=InChI=1S/Ni.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/; smiles=O=S(=O)([O-])[O-].[Ni+2]
2026-05-02T03:12:17.460008+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula))
2026-06-02T07:05:13.392085+00:00 infer_roles_from_name_lists ANNOTATED Added media role: MINERAL (confidence: 0.80)
2026-06-09T05:23:46.813391+00:00 correct_stale_ontology_labels.py CORRECTED ontology_label 'NiSO4 x 6 H2O' -> 'nickel sulfate': synced to canonical CHEBI label (preferred_term 'NiSO4 x 6 H2O' unchanged).
2026-07-20T00:00:00+00:00 migrate_media_roles_to_facets ANNOTATED Migrated legacy media_roles to role facets (#128): MINERAL -> nutritional_roles.TRACE_ELEMENT
2026-08-13T00:00:00+00:00 merge_cas_conflict_duplicates MERGED_INTO Merged into CHEBI:53437 'Nickel (II) sulfate hexahydrate'; occurrences transferred. Was on CHEBI:53001 ('nickel sulfate'); the record's CAS 10101-97-0 is registered by ChEBI against CHEBI:53437 'nickel sulfate hexahydrate', the specific term §3 step 1 requires; the record sat on the generic sulfate and carried its anhydrous formula. Tombstoned REJECTED, SSSOM rows dropped (#320).
2026-08-15T00:00:00+00:00 fix_tombstone_pointers REFRESHED_TOMBSTONE_ONTOLOGY_ID ontology_id CHEBI:53001 -> CHEBI:53437 (#360). The merge set identifier and status but left ontology_mapping untouched, so this tombstone kept advertising a term it no longer asserts — anything indexing by ontology_id routed through it. Now agrees with the merge target 'Nickel (II) sulfate hexahydrate'. Provenance is unaffected: what the record used to assert is in this history.
2026-09-22T20:41:14.285965+00:00 claude LLM REJECTED_PARENT_NAME_SYNONYMS Retyped names of the parent compound or of a different hydrate as provenance-only REJECTED_LABEL, because this record is a distinct salt, hydrate or tombstone form and the label index resolved the parent's name here (#232): 'NiSO4 x 7 H2O'; 'NiSO4・7H2O'; 'nickel(2+) sulfate'. Preserved original text and source metadata. No identity, mapping, role, or remaining-synonym claim was adjudicated.