FeCl2 x 4 H2O

CHEBI:86249 chemically defined MAPPED CHEBI EXACT_MATCH

Ontology mapping

Primary identifier
CHEBI:86249
Ontology label
iron dichloride tetrahydrate
kg-microbe node
CHEBI:86249

Nutritional roles

Synonyms (22)

SynonymTypeSourceOccurrences
Role: Mineral source; Properties: Defined component, Inorganic compound, Simple component RAW_TEXT CultureMech
Role: Mineral source; Properties: Defined component, Simple component, Inorganic compound RAW_TEXT CultureMech
Role: Mineral source; Properties: Inorganic compound, Defined component, Simple component RAW_TEXT CultureMech
FeCl 2 x 4 H2O HYDRATE_FORM kg_microbe
FeCl2 . 4H2O HYDRATE_FORM kg_microbe
FeCl2 tetrahydrate EXACT_SYNONYM kg_microbe
FeCl2 x 4 H2O (0.1% w/v in 0.2 N HCl) HYDRATE_FORM kg_microbe
FeCl2 x 4 H2O (0.2% w/v in 0.02 N HCl) HYDRATE_FORM kg_microbe
FeCl2. 4H2O HYDRATE_FORM kg_microbe
FeCl2.4H2O HYDRATE_FORM kg_microbe
FeCl2·4H2O HYDRATE_FORM kg_microbe
FeCl2・4H2O HYDRATE_FORM kg_microbe
Ferrous chloride, tetrahydrate EXACT_SYNONYM kg_microbe
Iron (II) chloride tetrahydrate EXACT_SYNONYM kg_microbe
Iron (II) chloride, tetrahydrate EXACT_SYNONYM kg_microbe
Iron chloride tetrahydrate EXACT_SYNONYM kg_microbe
Iron(2+) chloride, tetrahydrate EXACT_SYNONYM kg_microbe
iron dichloride tetrahydrate EXACT_SYNONYM kg_microbe
FeCl2 4H2O HYDRATE_FORM kg_microbe_via_hydration_routing
FeCl2 ∙ 4 H2O HYDRATE_FORM kg_microbe_via_hydration_routing
dichloroiron--water (1/4) EXACT_SYNONYM chebi_synonym_review
FeCl 2 RAW_TEXT sssom_other_backfill

Chemical properties

Cas rn
13478-10-9
Data source
PubChem (via CHEBI:86249)
Retrieval date
2026-04-09T00:32:50.689620+00:00
Molecular formula
Cl2Fe.4H2O
Inchi
InChI=1S/2ClH.Fe.4H2O/h2*1H;;4*1H2/q;;+2;;;;/p-2
Smiles
O.O.O.O.[Cl][Fe][Cl]

Evidence (1)

DATABASE_MATCH via CultureMech

Imported from CultureMech pipeline, quality=DIRECT_MATCH

Occurrence statistics

Total occurrences
1,330
Distinct media
1,328

Curation history

TimestampCuratorActionNew statusChanges
2026-03-09T06:54:18.022301+00:00 import_from_culturemech IMPORTED MAPPED Initial import from CultureMech pipeline
2026-04-05T21:48:45.072199+00:00 fetch_cas_rn_from_culturebot_csv ADDED_CAS_RN MAPPED Added CAS-RN:13478-10-9 from CultureBotHT compounds_to_cas.csv (matched: FeCl2·4H2O)
2026-04-07T10:19:33.249107+00:00 feba_ontology_enrichment_batch CREATED MAPPED Created ingredient file from FEBA ontology enrichment batch with ChEBI ID CHEBI:86249
2026-04-09T00:32:50.689620+00:00 enrich_mim_cas_rn_batch CAS_RN_ADDED MAPPED Added CAS-RN 13478-10-9 from PubChem (via CHEBI:86249)
2026-04-18T00:00:00+00:00 cbclaw_kg_microbe_sweep LLM ADDED_SYNONYMS MAPPED Added 15 synonyms from kg-microbe P4.4 enrichment: FeCl 2 x 4 H2O, FeCl2 . 4H2O, FeCl2 tetrahydrate, FeCl2 x 4 H2O (0.1% w/v in 0.2 N HCl), FeCl2 x 4 H2O (0.2% w/v in 0.02 N HCl), ... (10 more)
2026-04-18T00:00:00+00:00 cbclaw_kg_microbe_sweep LLM ADDED_SYNONYMS MAPPED Added 14 synonyms from kg-microbe P4.4 enrichment: FeCl 2 x 4 H2O, FeCl2 . 4H2O, FeCl2 tetrahydrate, FeCl2 x 4 H2O, FeCl2 x 4 H2O (0.1% w/v in 0.2 N HCl), ... (9 more)
2026-04-18T00:00:00+00:00 cbclaw_kg_microbe_sweep LLM ADDED_SYNONYMS MAPPED Added 15 synonyms from kg-microbe P4.4 enrichment: FeCl 2 x 4 H2O, FeCl2 . 4H2O, FeCl2 tetrahydrate, FeCl2 x 4 H2O, FeCl2 x 4 H2O (0.1% w/v in 0.2 N HCl), ... (10 more)
2026-04-19T06:30:07.230267+00:00 audit_p44_hydration_routing ADDED_SYNONYMS_VIA_HYDRATION_ROUTING MAPPED Added 2 synonyms re-routed from anhydrous/hydrate sibling records (Fecl24h2o.yaml): FeCl2 4H2O, FeCl2 ∙ 4 H2O
2026-04-19T06:30:07.230267+00:00 audit_p44_hydration_routing ADDED_SYNONYMS_VIA_HYDRATION_ROUTING MAPPED Added 2 synonyms re-routed from anhydrous/hydrate sibling records (Fecl2_X_4_H2o.yaml): FeCl2 4H2O, FeCl2 ∙ 4 H2O
2026-04-19T07:23:20.785693+00:00 audit_mim_merge MERGED_FROM_DUPLICATES MAPPED Absorbed 2 duplicate MIM record(s) into this one: Fecl24h2o.yaml, Iron_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.
2026-05-01T07:35:33.555719+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-05-01T08:08:29.536915+00:00 auto_classify_ingredient_type AUTO_BACKFILL_CHEBI_CHEMISTRY molecular_formula=Cl2Fe.4H2O; inchi=InChI=1S/2ClH.Fe.4H2O/h2*1H;;4*1H2/q;;+2;;;;/p-2; smiles=O.O.O.O.[Cl][Fe][Cl]
2026-05-02T03:12:14.402554+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula))
2026-05-29T23:35:36.111104+00:00 extract_roles_from_synonyms ANNOTATED Added media role: MINERAL (confidence: 1.00)
2026-06-09T05:23:46.763705+00:00 correct_stale_ontology_labels.py CORRECTED ontology_label 'FeCl2 x 4 H2O' -> 'iron dichloride tetrahydrate': synced to canonical CHEBI label (preferred_term 'FeCl2 x 4 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.IRON_SOURCE
2026-08-27T03:16:39.518830+00:00 refresh_occurrence_statistics CORRECTED occurrence_statistics 111/1305 -> 1328/1330 (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: 'FeCl 2'. Tokens already present on the kg-microbe ontology node were left out as redundant (#520).