Na2SO3

CHEBI:86477 chemically defined MAPPED CHEBI SYNONYM_MATCH

Ontology mapping

Primary identifier
CHEBI:86477
Ontology label
sodium sulfite
kg-microbe node
CHEBI:86477

Physicochemical roles

Synonyms (7)

SynonymTypeSourceOccurrences
Role: Reducing agent; Properties: Inorganic compound, Simple component, Defined component RAW_TEXT CultureMech
Dried sodium sulfite EXACT_SYNONYM kg_microbe
Natrium sulfurosum EXACT_SYNONYM kg_microbe
Natriumsulfid EXACT_SYNONYM kg_microbe
Sodium sulphite EXACT_SYNONYM kg_microbe
Sulfurous acid, disodium salt EXACT_SYNONYM kg_microbe
disodium sulfite EXACT_SYNONYM kg_microbe

Chemical properties

Cas rn
7757-83-7
Data source
PubChem API
Retrieval date
2026-04-05T19:53:22.497725+00:00
Molecular formula
2Na.O3S
Inchi
InChI=1S/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2
Smiles
O=S([O-])[O-].[Na+].[Na+]

Evidence (1)

DATABASE_MATCH via CultureMech

Imported from CultureMech pipeline, quality=DIRECT_MATCH

Occurrence statistics

Total occurrences
26
Distinct media
26

Curation history

TimestampCuratorActionNew statusChanges
2026-03-09T06:54:18.022301+00:00 import_from_culturemech IMPORTED MAPPED Initial import from CultureMech pipeline
2026-04-05T19:53:22.497947+00:00 fetch_cas_rn_from_pubchem ADDED_CAS_RN MAPPED Added CAS-RN:7757-83-7 from PubChem API via name lookup (Na2SO3)
2026-04-05T21:48:45.822410+00:00 fetch_cas_rn_from_culturebot_csv ADDED_CAS_RN MAPPED Added CAS-RN:7757-83-7 from CultureBotHT compounds_to_cas.csv (matched: Sodium sulfite)
2026-04-18T00:00:00+00:00 cbclaw_kg_microbe_sweep LLM ADDED_SYNONYMS MAPPED Added 6 synonyms from kg-microbe P4.4 enrichment: Dried sodium sulfite, Natrium sulfurosum, Natriumsulfid, Sodium sulphite, Sulfurous acid, disodium salt, ... (1 more)
2026-04-18T00:00:00+00:00 cbclaw_kg_microbe_sweep LLM ADDED_SYNONYMS MAPPED Added 7 synonyms from kg-microbe P4.4 enrichment: Dried sodium sulfite, Na2SO3, Natrium sulfurosum, Natriumsulfid, Sodium sulphite, ... (2 more)
2026-04-19T07:39:23.955331+00:00 audit_mim_merge MERGED_FROM_DUPLICATES MAPPED Absorbed 1 duplicate MIM record(s) into this one: Sodium_Sulfite.yaml. Synonyms, curation_history, and occurrence counts were unioned/summed; winner selected by highest occurrence count with preferred_term readability tie-break.
2026-05-01T07:35:35.288111+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-05-01T08:08:31.361565+00:00 auto_classify_ingredient_type AUTO_BACKFILL_CHEBI_CHEMISTRY molecular_formula=2Na.O3S; inchi=InChI=1S/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;; smiles=O=S([O-])[O-].[Na+].[Na+]
2026-05-02T03:12:17.110238+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula))
2026-05-30T00:22:50.429116+00:00 extract_roles_from_synonyms ANNOTATED Added media role: REDUCING_AGENT (confidence: 1.00)
2026-07-20T00:00:00+00:00 migrate_media_roles_to_facets ANNOTATED Migrated legacy media_roles to role facets (#128): REDUCING_AGENT -> physicochemical_roles.REDUCING_AGENT
2026-08-10T00:00:00+00:00 regrade_synonym_matches REGRADED_EXACT_TO_SYNONYM mapping_quality EXACT_MATCH -> SYNONYM_MATCH (#317). The record's label does not equal the term's primary label 'sodium sulfite'; it matches the ChEBI synonym 'Natriumsulfid' on CHEBI:86477. The schema defines EXACT_MATCH as a direct match to the term and SYNONYM_MATCH as a match to a known synonym, so the recorded grade overstated. ontology_id is unchanged — the term is correct. The SSSOM predicate is unaffected (both grades emit skos:exactMatch).
2026-08-27T03:16:39.519504+00:00 refresh_occurrence_statistics CORRECTED occurrence_statistics 16/16 -> 26/26 (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]