Sodium hypophosphite monohydrate

Ontology mapping

Primary identifier: cas:10039-56-2
Ontology term: CHEBI:234148 — sodium hypophosphite
Ontology label: sodium hypophosphite

Chemical properties

Cas rn: 10039-56-2
Data source: CultureBotHT compounds_to_cas.csv
Retrieval date: 2026-04-29T06:51:33.117170+00:00
Molecular formula: H2NaO3P
Inchi: InChI=1S/Na.HO2P/c;1-3-2/h;(H,1,2)/q+1;/p-1
Smiles: O=P[O-].[Na+]

Evidence (3)

DATABASE_MATCH via CultureBotHT

Imported from CultureBotHT. CAS-RN 10039-56-2 present, but no CHEBI entry exists (checked OAK CHEBI sqlite + PubChem CID synonyms). FEBA/Hans80 panels: Hans80metals. Curator can promote to a CHEBI primary if/when CHEBI adds the term.

DATABASE_MATCH via CHEBI via OLS (stem-substring)

Parent class identified via stem-substring; matched_via='Sodium hypophosphite monohydrate'

DATABASE_MATCH via MIM curation (#342)

mapping_quality NARROW_MATCH -> CLOSE_MATCH, predicate skos:narrowMatch -> skos:closeMatch. narrowMatch asserts this record is *narrower in meaning* than CHEBI:234148 ('sodium hypophosphite') — a subsumption ChEBI itself denies: it files hydrates under CHEBI:35505 'hydrate', never under the anhydrous compound, which is not an ancestor even transitively. A hydrate is a distinct substance containing the anhydrous form, not a specialization of it. closeMatch claims similarity without subsumption. The ontology_id and the record's own identifier are unchanged.

Occurrence statistics

Total occurrences: 0
Distinct media: 0

Curation history

Timestamp	Curator	Action	New status	Changes
2026-04-29T06:51:33.117170+00:00	audit_add_remaining_culturebotht	CREATED_FROM_CAS_FALLBACK	MAPPED	Created with cas:10039-56-2 as primary identifier; no CHEBI entry exists for this compound.
2026-05-01T07:35:36.273963+00:00	auto_classify_ingredient_type	AUTO_CLASSIFY_INGREDIENT_TYPE		set ingredient_type=SINGLE_INGREDIENT (cas: primary (defined chemical))
2026-05-02T03:12:18.403512+00:00	auto_classify_ingredient_type	AUTO_CLASSIFY_INGREDIENT_TYPE		set ingredient_type=SINGLE_INGREDIENT (cas: primary (defined chemical))
2026-05-02T05:00:52.657224+00:00	backfill_parent_terms	BACKFILL_PARENT_CHEBI		set ontology_mapping parent=CHEBI:234148 (stem-substring)
2026-05-02T23:59:52.875393+00:00	auto_classify_ingredient_type	AUTO_BACKFILL_CHEBI_CHEMISTRY		molecular_formula=Na.O2P; inchi=InChI=1S/Na.HO2P/c;1-3-2/h;(H,1,2)/q+1;/p-1; smiles=O=P[O-].[Na+]
2026-08-13T00:00:00+00:00	fix_parent_inherited_formulas	CORRECTED_INHERITED_FORMULA		molecular_formula 'Na.O2P' -> 'H2NaO3P' (#326). The recorded value was identical to the narrowMatch parent's, so it described the parent rather than this salt/hydrate. Corrected from the record's own CAS 10039-56-2, which resolves in PubChem to 'Sodium hypophosphite monohydrate' — provenance independent of the ChEBI mapping under test, per MAPPING_SEMANTICS §3. The narrowMatch itself is correct and is unchanged.
2026-08-13T00:00:00+00:00	regrade_hydrate_to_close_match	REGRADED_HYDRATE_TO_CLOSE_MATCH		mapping_quality NARROW_MATCH -> CLOSE_MATCH (#342); a hydrate is not subsumed by its anhydrous form, and ChEBI does not model it as such.