MnCl2 x 4 H2O

Ontology mapping

Primary identifier: CHEBI:86368
Ontology label: manganese(II) chloride tetrahydrate

Nutritional roles

Role
TRACE_ELEMENT
Confidence
0.8
Evidence
- Reference type
  COMPUTATIONAL_PREDICTION
  Reference text
  Inferred from curated media-role name pattern
  Curator note
  Provisional role from a curated name-pattern rule; review recommended.

Synonyms (21)

Synonym	Type	Source
Manganese (II) chloride tetrahydrate	EXACT_SYNONYM	kg_microbe
Manganese chloride tetrahydrate	EXACT_SYNONYM	kg_microbe
Manganese dichloride tetrahydrate	EXACT_SYNONYM	kg_microbe
Manganous chloride tetrahydrate	EXACT_SYNONYM	kg_microbe
MnCl2 . 4H2O	HYDRATE_FORM	kg_microbe
MnCl2 · 4H2O	HYDRATE_FORM	kg_microbe
MnCl2.4H2O	HYDRATE_FORM	kg_microbe
MnCl2⋅4H2O	HYDRATE_FORM	kg_microbe
MnCl2・4H2O	HYDRATE_FORM	kg_microbe
manganese(2+) chloride tetrahydrate	EXACT_SYNONYM	kg_microbe
manganese(II) chloride tetrahydrate	EXACT_SYNONYM	kg_microbe
MnCl2 × 4H2O	HYDRATE_FORM	kg_microbe_via_hydration_routing
MnCl2 ∙ 4 H2O	HYDRATE_FORM	kg_microbe_via_hydration_routing
MnCl2∙4H2O	HYDRATE_FORM	kg_microbe_via_hydration_routing
MnCl2･4H2O	HYDRATE_FORM	kg_microbe_via_hydration_routing
dichloromanganese--water (1/4)	EXACT_SYNONYM	chebi_synonym_review
manganese(2+) chloride--water (1/4)	EXACT_SYNONYM	chebi_synonym_review
MnCl4 x 4 H2O	RAW_TEXT	merge_from_UNMAPPED_0449
MnCl2·4H2O	RAW_TEXT	culturemech:output/ingredient_occurrences.tsv
MnCl2 x 4H2O	RAW_TEXT	sssom_other_backfill
MnCl4・4H2O	RAW_TEXT	sssom_other_backfill

Chemical properties

Cas rn: 13446-34-9
Data source: PubChem (via CHEBI:86368)
Retrieval date: 2026-04-09T00:32:50.689620+00:00
Molecular formula: Cl2Mn.4H2O
Inchi: InChI=1S/2ClH.Mn.4H2O/h2*1H;;4*1H2/q;;+2;;;;/p-2
Smiles: O.O.O.O.[Cl][Mn][Cl]

Evidence (1)

DATABASE_MATCH via CultureMech

Imported from CultureMech pipeline, quality=DIRECT_MATCH

Occurrence statistics

Total occurrences: 2,990
Distinct media: 2,990

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
2026-04-07T10:19:44.979901+00:00	feba_ontology_enrichment_batch	CREATED	MAPPED	Created ingredient file from FEBA ontology enrichment batch with ChEBI ID CHEBI:86368
2026-04-09T00:32:50.689620+00:00	enrich_mim_cas_rn_batch	CAS_RN_ADDED	MAPPED	Added CAS-RN 13446-34-9 from PubChem (via CHEBI:86368)
2026-04-18T00:00:00+00:00	cbclaw_kg_microbe_sweep LLM	ADDED_SYNONYMS	MAPPED	Added 11 synonyms from kg-microbe P4.4 enrichment: Manganese (II) chloride tetrahydrate, Manganese chloride tetrahydrate, Manganese dichloride tetrahydrate, Manganous chloride tetrahydrate, MnCl2 . 4H2O, ... (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: Manganese chloride tetrahydrate, Manganese dichloride tetrahydrate, Manganous chloride tetrahydrate, MnCl2 . 4H2O, MnCl2 · 4H2O, ... (5 more)
2026-04-19T06:30:07.230267+00:00	audit_p44_hydration_routing	ADDED_SYNONYMS_VIA_HYDRATION_ROUTING	MAPPED	Added 4 synonyms re-routed from anhydrous/hydrate sibling records (Manganese_II_chloride_tetrahydrate.yaml): MnCl2 × 4H2O, MnCl2 ∙ 4 H2O, MnCl2∙4H2O, MnCl2･4H2O
2026-04-19T07:23:20.785693+00:00	audit_mim_merge	MERGED_FROM_DUPLICATES	MAPPED	Absorbed 1 duplicate MIM record(s) into this one: Manganese_II_chloride_tetrahydrate.yaml. Synonyms, curation_history, and occurrence counts were unioned/summed; winner selected by highest occurrence count with preferred_term readability tie-break.
2026-05-01T07:35:34.824632+00:00	auto_classify_ingredient_type	AUTO_CLASSIFY_INGREDIENT_TYPE		set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-05-01T08:08:30.869108+00:00	auto_classify_ingredient_type	AUTO_BACKFILL_CHEBI_CHEMISTRY		molecular_formula=Cl2Mn.4H2O; inchi=InChI=1S/2ClH.Mn.4H2O/h21H;;41H2/q;;+2;;;;/p-2; smiles=O.O.O.O.[Cl][Mn][Cl]
2026-05-02T03:12:16.518668+00:00	auto_classify_ingredient_type	AUTO_CLASSIFY_INGREDIENT_TYPE		set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula))
2026-06-02T07:05:13.391355+00:00	infer_roles_from_name_lists	ANNOTATED		Added media role: MINERAL (confidence: 0.80)
2026-06-09T05:23:46.799462+00:00	correct_stale_ontology_labels.py	CORRECTED		ontology_label 'MnCl2 x 4 H2O' -> 'manganese(II) chloride tetrahydrate': synced to canonical CHEBI label (preferred_term 'MnCl2 x 4 H2O' unchanged).
2026-06-16T00:00:00+00:00	merge_duplicate_unmapped LLM	MERGED_FROM_UNMAPPED_DUPLICATE	MAPPED	Absorbed duplicate UNMAPPED_0449 "MnCl4 x 4 H2O". Edison deep research (literature) + MediaDive recipe context + local OAK CHEBI confirm this is a garbled spelling of 'MnCl2 x 4 H2O' (already mapped to CHEBI:86368); promotion would PK-collide, so absorbed here as a synonym.
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
2026-08-27T03:16:39.519323+00:00	refresh_occurrence_statistics	CORRECTED		occurrence_statistics 107/2310 -> 2990/2990 (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]
2026-08-30T04:48:06.233536+00:00	claude_culturemech_alias_backfill	ADDED_SYNONYMS		Added 1 CultureMech recipe surface form(s) that folded onto this record's published label but were absent from MIM's label index, so CultureMech could not resolve them: 'MnCl2·4H2O' (x6 CultureMech mentions). Source: culturemech:output/ingredient_occurrences.tsv.
2026-09-02T22:41:49.137449+00:00	claude_sssom_surface_form_backfill	ADDED_SYNONYMS		Recovered 2 surface form(s) that the published SSSOM `other` carried but no curated record did, so a rebuild would have dropped them from KGX: 'MnCl2 x 4H2O'; 'MnCl4・4H2O'. Tokens already present on the kg-microbe ontology node were left out as redundant (#520).