CaCl2 x 2 H2O

Ontology mapping

Primary identifier: CHEBI:86158
Ontology label: calcium chloride dihydrate
kg-microbe node: CHEBI:86158

Nutritional roles

Role
MINERAL_SOURCE
Confidence
1.0
Evidence
- Reference text
  CultureMech database (4343 occurrences as 'Mineral source')
  Reference type
  DATABASE_ENTRY
  Url
  https://github.com/CultureBotAI/CultureMech
  Excerpt
  Role: Mineral source; Properties: Defined component, Inorganic compound, Simple component
  Curator note
  Widespread use in media formulations (4343 occurrences). High confidence based on 'Defined component' property.

Synonyms (31)

Synonym	Type	Source
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
Role: Mineral source; Properties: Inorganic compound, Simple component, Defined component	RAW_TEXT	CultureMech
Role: Mineral source; Properties: Simple component, Defined component, Inorganic compound	RAW_TEXT	CultureMech
CaCl 2 X 2 H2O	HYDRATE_FORM	kg_microbe
CaCl2 . 2H2O	HYDRATE_FORM	kg_microbe
CaCl2 x 2 H2O (0.1% w/v)	HYDRATE_FORM	kg_microbe
CaCl2 x 2 H2O (50 g/l stock solution)	HYDRATE_FORM	kg_microbe
CaCl2 x 2 H2O (5M)	HYDRATE_FORM	kg_microbe
CaCl2 x 2 H2O solution (7%)	HYDRATE_FORM	kg_microbe
CaCl2 x 2H2O	HYDRATE_FORM	kg_microbe
CaCl2 x2H2O	HYDRATE_FORM	kg_microbe
CaCl2 · 2H2O	HYDRATE_FORM	kg_microbe
CaCl2. 2H2O	HYDRATE_FORM	kg_microbe
CaCl2.2H2O	HYDRATE_FORM	kg_microbe
CaCl2x 2H2O	HYDRATE_FORM	kg_microbe
CaCl2x2H2O	HYDRATE_FORM	kg_microbe
CaCl2·2H2O	HYDRATE_FORM	kg_microbe
Calcium chloride dihydrate	EXACT_SYNONYM	merged_from_duplicate_mim_record
CaCl2 x 2 H2O	HYDRATE_FORM	kg_microbe
CaCl2 x 2 H2O	HYDRATE_FORM	kg_microbe
CaCl2•2H2O	RAW_TEXT	CultureMech
CaCl2•2H2O (Sigma C-3881)	RAW_TEXT	CultureMech
CaCl2•2H2O(CAS: 10035-04-8)	RAW_TEXT	CultureMech
CaCl2•2H2O(Sigma C-3881)	RAW_TEXT	CultureMech
calcium chloride--water (1/2)	EXACT_SYNONYM	chebi_synonym_review
CaCl22H2O	RAW_TEXT	MERGED_FROM CaCl22H2O (#414)
Role: Mineral source; Properties: Simple component, Inorganic compound, Defined component	RAW_TEXT	MERGED_FROM CaCl22H2O (#414)
CaCl2 × 2 H2O	HYDRATE_FORM	MERGED_FROM CaCl22H2O (#414)
CaCl2*2H2O	HYDRATE_FORM	MERGED_FROM CaCl22H2O (#414)

Chemical properties

Cas rn: 10035-04-8
Data source: OAK/CHEBI xref
Retrieval date: 2026-04-19T07:35:12.781730+00:00
Molecular formula: Ca.2Cl.2H2O
Inchi: InChI=1S/Ca.2ClH.2H2O/h;2*1H;2*1H2/q+2;;;;/p-2
Smiles: O.O.[Ca+2].[Cl-].[Cl-]

Evidence (1)

DATABASE_MATCH via CultureMech

Imported from CultureMech pipeline, quality=DIRECT_MATCH

Occurrence statistics

Total occurrences: 6,013
Distinct media: 5,959

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
2026-04-05T21:48:44.788308+00:00	fetch_cas_rn_from_culturebot_csv	ADDED_CAS_RN	MAPPED	Added CAS-RN:10035-04-8 from CultureBotHT compounds_to_cas.csv (matched: CaCl2·2H2O)
2026-04-05T21:48:44.792835+00:00	fetch_cas_rn_from_culturebot_csv	ADDED_CAS_RN	MAPPED	Added CAS-RN:10035-04-8 from CultureBotHT compounds_to_cas.csv (matched: CaCl2 x2H2O)
2026-04-05T21:48:44.799345+00:00	fetch_cas_rn_from_culturebot_csv	ADDED_CAS_RN	MAPPED	Added CAS-RN:10035-04-8 from CultureBotHT compounds_to_cas.csv (matched: CaCl2x2H2O)
2026-04-05T21:48:44.811055+00:00	fetch_cas_rn_from_culturebot_csv	ADDED_CAS_RN	MAPPED	Added CAS-RN:10035-04-8 from CultureBotHT compounds_to_cas.csv (matched: Calcium chloride dihydrate)
2026-04-09T00:32:50.689620+00:00	enrich_mim_cas_rn_batch	CAS_RN_ADDED	MAPPED	Added CAS-RN 10043-52-4 from CultureBotHT/compounds_to_cas.csv
2026-04-18T00:00:00+00:00	cbclaw_kg_microbe_sweep LLM	ADDED_SYNONYMS	MAPPED	Added 14 synonyms from kg-microbe P4.4 enrichment: CaCl 2 X 2 H2O, CaCl2 . 2H2O, CaCl2 x 2 H2O (0.1% w/v), CaCl2 x 2 H2O (50 g/l stock solution), CaCl2 x 2 H2O (5M), ... (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: CaCL2 x 2 H2O, CaCl 2 X 2 H2O, CaCl2 x 2 H2O, CaCl2 . 2H2O, CaCl2 x 2 H2O, ... (10 more)
2026-04-19T07:35:12.782058+00:00	audit_mim_merge	MERGED_FROM_DUPLICATES	MAPPED	Absorbed 4 duplicate MIM record(s) into this one: Cacl22h2o.yaml, Calcium_Chloride_Dihydrate.yaml, Cacl2_X2h2o.yaml, Cacl2x2h2o.yaml. Synonyms, curation_history, and occurrence counts were unioned/summed; winner selected by highest occurrence count with preferred_term readability tie-break.
2026-04-19T07:35:12.781730+00:00	audit_resolve_risky_cas_rn	RESOLVED_CAS_RN_CONFLICT	MAPPED	CAS-RN conflict across merged group (10035-04-8\|10043-52-4) resolved via OAK canonical xref: 10035-04-8 (match)
2026-05-01T07:35:32.514918+00:00	auto_classify_ingredient_type	AUTO_CLASSIFY_INGREDIENT_TYPE		set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-05-01T08:08:28.333841+00:00	auto_classify_ingredient_type	AUTO_BACKFILL_CHEBI_CHEMISTRY		molecular_formula=Ca.2Cl.2H2O; inchi=InChI=1S/Ca.2ClH.2H2O/h;21H;21H2/q+2;;;;/p-2; smiles=O.O.[Ca+2].[Cl-].[Cl-]
2026-05-02T03:12:12.973607+00:00	auto_classify_ingredient_type	AUTO_CLASSIFY_INGREDIENT_TYPE		set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula))
2026-05-05T00:00:00+00:00	ingredient_mapping_review_2026_05_05	MERGED	MAPPED	Absorbed duplicate record Cacl22h2o.yaml (UNMAPPED_0007) into Cacl2_X_2_H2o.yaml; source occurrence counts and synonyms were merged. Hydrate notation and source CAS synonym support calcium chloride dihydrate CHEBI:86158; conflicting enriched anhydrous CAS was not propagated.
2026-05-29T23:35:36.110336+00:00	extract_roles_from_synonyms	ANNOTATED		Added media role: MINERAL (confidence: 1.00)
2026-06-09T05:23:46.733158+00:00	correct_stale_ontology_labels.py	CORRECTED		ontology_label 'CaCl2 x 2 H2O' -> 'calcium chloride dihydrate': synced to canonical CHEBI label (preferred_term 'CaCl2 x 2 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.MINERAL_SOURCE
2026-08-20T00:00:00+00:00	merge_identifier_collisions	MERGED_FROM		Absorbed 'CaCl22H2O' (#414). Both records held CHEBI:86158 while both were live, which MIM's own rule forbids — for a mapped record the identifier IS the ontology CURIE, so two live records on it assert that two ingredients are one thing. They are one thing: the same string with the spacing removed — identical CAS 10035-04-8 and formula Ca.2Cl.2H2O, and no reading of 'CaCl22H2O' yields anything but calcium chloride dihydrate. 'CaCl2 x 2 H2O' wins as the label media actually use (4343 occurrences against 2); the other survives as a RAW_TEXT synonym, so label_index still answers for it.
2026-08-27T03:16:39.518476+00:00	refresh_occurrence_statistics	CORRECTED		occurrence_statistics 127/4345 -> 5959/6013 (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]