Disodium phosphate heptahydrate (0.02 M stock)

Ontology mapping

Primary identifier: kgmicrobe.ingredient:disodium_phosphate_heptahydrate_~28002_m_stock~29
Ontology term: CHEBI:34683 — disodium hydrogenphosphate
Ontology label: disodium hydrogenphosphate
Notes: 2026-05-10 SSSOM SYNONYM_ENRICH review: repaired unrelated CHEBI:131825 exact mapping. Disodium phosphate heptahydrate (0.02 M stock) is a stock solution ingredient; retain a kgmicrobe.ingredient identity and use CHEBI:34683 as a broader disodium hydrogenphosphate solute parent.
kg-microbe node: kgmicrobe.ingredient:disodium_phosphate_heptahydrate_~28002_m_stock~29

Synonyms (3)

Synonym	Type	Source
disodium hydrogen phosphate heptahydrate	RELATED_SYNONYM	sssom_synonym_enrich_review_2026_05_10
sodium hydrogen phosphate--water (1/2)	RAW_TEXT	sssom_other_backfill
sodium monohydrogen phosphate dihydrat	RAW_TEXT	sssom_other_backfill

Rejected enrichment labels (5)

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

Rejected label	Disposition	Source
Disodium phosphate dihydrate	REJECTED_LABEL	sssom_other_backfill
Phosphoric acid, disodium salt, dihydrate	REJECTED_LABEL	sssom_other_backfill
Sodium phosphate, dibasic, dihydrate	REJECTED_LABEL	sssom_other_backfill
disodium hydrogen phosphate dihydrate	REJECTED_LABEL	sssom_other_backfill
sodium hydrogen orthophosphate dihydrate	REJECTED_LABEL	sssom_other_backfill

Chemical properties

Inchi: InChI=1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
Molecular weight: 141.958
Data source: ChEBI+PubChem
Retrieval date: 2026-05-23T08:30:57.822010+00:00

Evidence (3)

LEXICAL_MATCH via culturemech-pending

Imported from culturemech-pending via source-preset. source_id=culturemech.solution_ingredient:Disodium_phosphate_heptahydrate_(0.02_M_stock);

CURATOR_JUDGMENT via sssom_synonym_enrich_review_2026_05_10

Previous CHEBI:131825 mapping resolved to an unrelated deoxyadenosine term. OLS/OAK finds disodium hydrogenphosphate but no exact heptahydrate stock solution term, so the stock solution retains a kgmicrobe.ingredient identity with CHEBI:34683 as a broader solute parent.

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:34683 ('disodium hydrogenphosphate') — 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: 1
Distinct media: 1

Curation history

Timestamp	Curator	Action	New status	Changes
2026-05-01T02:36:59.689003+00:00	audit_import_ingredients[culturemech-pending]	CREATED_FROM_INGREDIENT_IMPORT	MAPPED	Imported from culturemech-pending via source-preset. source_id=culturemech.solution_ingredient:Disodium_phosphate_heptahydrate_(0.02_M_stock);
2026-05-01T07:35:33.301951+00:00	auto_classify_ingredient_type	AUTO_CLASSIFY_INGREDIENT_TYPE		set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-05-01T08:08:29.268269+00:00	auto_classify_ingredient_type	AUTO_BACKFILL_CHEBI_CHEMISTRY		molecular_formula=C10H11N5O3; inchi=InChI=1S/C10H11N5O3/c11-8-5-9(13-2-12-8)15-4-1-3(1; smiles=[H][C@]12O[C@H](C[C@@H]1O)n1c(nc3c(N)ncnc31)[C@H]2
2026-05-02T03:12:14.073017+00:00	auto_classify_ingredient_type	AUTO_CLASSIFY_INGREDIENT_TYPE		set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula))
2026-05-10T04:47:45+00:00	sssom_synonym_enrich_review_2026_05_10	CORRECTED	MAPPED	Changed primary identifier from unrelated CHEBI:131825 to kgmicrobe.ingredient:disodium_phosphate_heptahydrate_~28002_m_stock~29; retained CHEBI:34683 only as a NARROW_MATCH parent and removed unrelated deoxyadenosine chemical properties.
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.
2026-08-27T03:16:39.518747+00:00	refresh_occurrence_statistics	CORRECTED		occurrence_statistics 0/0 -> 1/1 (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: 'Disodium phosphate dihydrate'. Tokens already present on the kg-microbe ontology node were left out as redundant (#520).
2026-09-02T22:41:49.137449+00:00	claude_sssom_surface_form_backfill	ADDED_SYNONYMS		Recovered 6 surface form(s) that the published SSSOM `other` carried but no curated record did, so a rebuild would have dropped them from KGX: 'Phosphoric acid, disodium salt, dihydrate'; 'Sodium phosphate, dibasic, dihydrate'; 'disodium hydrogen phosphate dihydrate'; 'sodium hydrogen orthophosphate dihydrate'; 'sodium hydrogen phosphate--water (1/2)'; 'sodium monohydrogen phosphate dihydrat'. Tokens already present on the kg-microbe ontology node were left out as redundant (#520).
2026-09-12T00:00:00+00:00	reject_hidden_hydrate_synonym_collapses	REJECTED_HIDDEN_HYDRATE_SYNONYMS	MAPPED	Marked hidden hydrate synonym(s) as REJECTED_LABEL so this record no longer resolves sibling hydrate identities (#251): 'Disodium phosphate dihydrate', 'Phosphoric acid, disodium salt, dihydrate', 'Sodium phosphate, dibasic, dihydrate', 'disodium hydrogen phosphate dihydrate', 'sodium hydrogen orthophosphate dihydrate'.