hydrous ferric oxide

CHEBI:50819 chemically defined MAPPED CHEBI LEXICAL_MATCH

Ontology mapping

Primary identifier
CHEBI:50819
Ontology label
ferric oxide
Notes
Imported from CultureBotHT (compounds_to_cas.csv (no CAS-RN)). No CAS-RN or CHEBI mapping available; curator review needed.

Synonyms (4)

SynonymTypeSourceOccurrences
hydrous ferric oxide RAW_TEXT culturebotht
diiron trioxide EXACT_SYNONYM chebi_synonym_review
iron(3+) oxide EXACT_SYNONYM chebi_synonym_review
iron(III) oxide EXACT_SYNONYM chebi_synonym_review

Chemical properties

Molecular formula
Fe2O3
Inchi
InChI=1S/2Fe.3O
Smiles
[O]=[Fe][O][Fe]=[O]
Data source
CHEBI sqlite (oaklib)

Evidence (1)

DATABASE_MATCH via CHEBI via OLS (resolve_unmapped_v2 strategy=stem-match)

Auto-upgraded from UNMAPPED_0165; matched via 'hydrous ferric oxide'; stem-substring

Occurrence statistics

Total occurrences
50
Distinct media
50

Curation history

TimestampCuratorActionNew statusChanges
2026-04-29T06:51:33.117170+00:00 audit_add_remaining_culturebotht CREATED_AS_UNMAPPED UNMAPPED Imported from CultureBotHT (compounds_to_cas.csv (no CAS-RN)). No CAS-RN or CHEBI mapping available; curator review needed.
2026-05-02T03:18:21.922232+00:00 resolve_unmapped_v2 AUTO_UPGRADE_TO_CHEBI primary UNMAPPED_0165 → CHEBI:50819 (strategy=stem-match)
2026-05-02T23:59:51.065623+00:00 auto_classify_ingredient_type AUTO_BACKFILL_CHEBI_CHEMISTRY molecular_formula=Fe2O3; inchi=InChI=1S/2Fe.3O; smiles=[O]=[Fe][O][Fe]=[O]
2026-08-13T00:00:00+00:00 classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (CHEBI primary with a structural definition) (#323)
2026-08-27T03:16:39.519001+00:00 refresh_occurrence_statistics CORRECTED occurrence_statistics 0/0 -> 50/50 (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]