Na2MoO4·2H2O

Ontology mapping

Primary identifier: CHEBI:75213
Ontology label: sodium molybdate dihydrate
kg-microbe node: CHEBI:75213

Nutritional roles

Role
TRACE_ELEMENT
Confidence
1.0
Evidence
- Reference text
  CultureMech database (255 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 (255 occurrences). High confidence based on 'Defined component' property.

Synonyms (17)

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, Inorganic compound, Defined component	RAW_TEXT	CultureMech
Na2MoO4 . 2H2O	HYDRATE_FORM	kg_microbe
Na2MoO4 . H2O	HYDRATE_FORM	kg_microbe
Na2MoO4 x 2 H2O (0.1% w/v)	HYDRATE_FORM	kg_microbe
Na2MoO4 x 2H2O	HYDRATE_FORM	kg_microbe
Na2MoO4 · 2H2O	HYDRATE_FORM	kg_microbe
Na2MoO4 · H2O	HYDRATE_FORM	kg_microbe
Na2MoO4 ⋅ 2H2O	HYDRATE_FORM	kg_microbe
Na2MoO4. 2H2O	HYDRATE_FORM	kg_microbe
Na2MoO4.H2O	HYDRATE_FORM	kg_microbe
Na2MoO4xH2O	HYDRATE_FORM	kg_microbe
Na2MoO4⋅2H2O	HYDRATE_FORM	kg_microbe
Na2MoO4・2H2O	HYDRATE_FORM	kg_microbe

Rejected enrichment labels (1)

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

Rejected label	Disposition	Source	Occurrences
sodium dioxido(dioxo)molybdenum	REJECTED_LABEL	chebi_synonym_review

Chemical properties

Cas rn: 10102-40-6
Data source: CultureBotHT compounds_to_cas.csv
Retrieval date: 2026-04-05T21:48:45.478291+00:00
Molecular formula: MoO4.2Na.2H2O
Inchi: InChI=1S/Mo.2Na.4O/q;2*+1;;;2*-1
Smiles: [Na+].[Na+].[O]=[Mo](=[O])([O-])[O-]

Evidence (3)

DATABASE_MATCH via CultureMech

[HISTORICAL — superseded by the #321 re-grade below: this record is a hydrate of CHEBI:75215, not an exact match to it] Imported from CultureMech pipeline, quality=DIRECT_MATCH

DATABASE_MATCH via MIM curation (#321/#334)

identifier CHEBI:75215 -> kgmicrobe.compound:na2moo42h2o; mapping_quality EXACT_MATCH -> NARROW_MATCH. The record is a hydrate of CHEBI:75215 ('sodium molybdate (anhydrous)') and was sharing that term's identifier — the identity collapse MAPPING_SEMANTICS §3 forbids, which made a distinct substance indistinguishable from its anhydrous parent downstream. ChEBI has no term for this hydrate and the record carries no verified CAS, so steps 1 and 2 are unavailable and step 3 applies.

DATABASE_MATCH via MIM curation (#321)

molecular_formula 'MoO4.2Na' -> 'MoO4.2Na.2H2O'. The recorded value described the anhydrous salt while the label names a hydrate, understating the mass by 18 g/mol per water. Corrected because the label states 2 water(s) of hydration, and the recorded formula was byte-identical to the anhydrous parent CHEBI:75215's ChEBI formula ('MoO4.2Na') — the mark of a value inherited from the parent rather than measured for this record. Water appended in ChEBI's own dot-separated notation.

Occurrence statistics

Total occurrences: 0
Distinct media: 0

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
2026-04-05T21:48:45.478294+00:00	fetch_cas_rn_from_culturebot_csv	ADDED_CAS_RN	MAPPED	Added CAS-RN:10102-40-6 from CultureBotHT compounds_to_cas.csv (matched: Na2MoO4·2H2O)
2026-04-05T23:46:02.458477+00:00	fetch_cas_rn_with_preprocessing	ADDED_CAS_RN	MAPPED	Added CAS-RN:231-551-7 from PubChem API (ontology label) via name preprocessing (Na2MoO4 x 2H2O)
2026-04-09T00:32:50.689620+00:00	enrich_mim_cas_rn_batch	CAS_RN_ADDED	MAPPED	Added CAS-RN 10102-40-6 from CultureBotHT/compounds_to_cas.csv
2026-04-18T00:00:00+00:00	cbclaw_kg_microbe_sweep LLM	ADDED_SYNONYMS	MAPPED	Added 12 synonyms from kg-microbe P4.4 enrichment: Na2MoO4 . 2H2O, Na2MoO4 . H2O, Na2MoO4 x 2 H2O (0.1% w/v), Na2MoO4 x 2H2O, Na2MoO4 · 2H2O, ... (7 more)
2026-04-18T00:00:00+00:00	cbclaw_kg_microbe_sweep LLM	ADDED_SYNONYMS	MAPPED	Added 12 synonyms from kg-microbe P4.4 enrichment: Na2MoO4 . 2H2O, Na2MoO4 . H2O, Na2MoO4 x 2 H2O (0.1% w/v), Na2MoO4 · 2H2O, Na2MoO4 · H2O, ... (7 more)
2026-04-19T07:23:20.785693+00:00	audit_mim_merge	MERGED_FROM_DUPLICATES	MAPPED	Absorbed 1 duplicate MIM record(s) into this one: Na2moo4_X_2h2o.yaml. Synonyms, curation_history, and occurrence counts were unioned/summed; winner selected by highest occurrence count with preferred_term readability tie-break.
2026-05-01T07:35:35.201214+00:00	auto_classify_ingredient_type	AUTO_CLASSIFY_INGREDIENT_TYPE		set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-05-01T08:08:31.267106+00:00	auto_classify_ingredient_type	AUTO_BACKFILL_CHEBI_CHEMISTRY		molecular_formula=MoO4.2Na; inchi=InChI=1S/Mo.2Na.4O/q;2+1;;;2-1; smiles=[Na+].[Na+].[O]=[Mo](=[O])([O-])[O-]
2026-05-02T03:12:17.009252+00:00	auto_classify_ingredient_type	AUTO_CLASSIFY_INGREDIENT_TYPE		set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula))
2026-05-29T23:35:36.112178+00:00	extract_roles_from_synonyms	ANNOTATED		Added media role: MINERAL (confidence: 1.00)
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	mint_hydrate_registry_terms	MINTED_REGISTRY_FOR_HYDRATE		identifier CHEBI:75215 -> kgmicrobe.compound:na2moo42h2o; mapping_quality EXACT_MATCH -> NARROW_MATCH (#321/#334); §3 step 3.
2026-08-13T00:00:00+00:00	add_water_of_hydration	ADDED_WATER_OF_HYDRATION		molecular_formula 'MoO4.2Na' -> 'MoO4.2Na.2H2O' (#321); the label states 2 water(s) of hydration, and the recorded formula was byte-identical to the anhydrous parent CHEBI:75215's ChEBI formula ('MoO4.2Na') — the mark of a value inherited from the parent rather than measured for this record. Water appended in ChEBI's own dot-separated notation.
2026-08-13T00:00:00+00:00	merge_minted_hydrate_duplicates	MERGED_INTO		Merged into CHEBI:75213 'Na2MoO4 x 2 H2O'; occurrences transferred. The 'kgmicrobe.compound:na2moo42h2o' minted for this record is withdrawn: §3 step 3 requires that no specific term exists, and one does (the record's own CAS 10102-40-6 is registered by ChEBI against CHEBI:75213 'sodium molybdate dihydrate'), so step 1 applied and the target identifier was already held. Tombstoned REJECTED, SSSOM rows dropped (#321).
2026-08-15T00:00:00+00:00	fix_tombstone_pointers	REFRESHED_TOMBSTONE_ONTOLOGY_ID		ontology_id CHEBI:75215 -> CHEBI:75213 (#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 'Na2MoO4 x 2 H2O'. Provenance is unaffected: what the record used to assert is in this history.
2026-09-09T00:00:00+00:00	fix_kg_microbe_node_id_drift	CORRECTED		kg_microbe_node_id CHEBI:75215 -> CHEBI:75213 (#554). The compatibility node id lagged a same-prefix identifier correction; the downstream node id must match the curated identifier unless a record intentionally crosses CURIE prefixes.
2026-09-23T06:21:57.638351+00:00	claude LLM	REJECTED_WRONG_FORM_SYNONYMS	REJECTED	Retyped REJECTED_LABEL: 'sodium dioxido(dioxo)molybdenum' (EXACT_SYNONYM): the anhydrous CHEBI:75215 name on the dihydrate CHEBI:75213 tombstone (#232). The token is kept as provenance only; it must not resolve, be exported, or enter the SSSOM other column.