Ontology mapping
- Primary identifier
-
CHEBI:18300 - Ontology label
- maleic acid
Synonyms (2)
| Synonym | Type | Source | Occurrences |
|---|---|---|---|
| cis-Butenedioic acid, Toxilic acid | EXACT_SYNONYM | culturebotht | |
| (2Z)-but-2-enedioic acid | EXACT_SYNONYM | chebi_synonym_review |
Chemical properties
- Cas rn
- 110-16-7
- Data source
- CHEBI dbxref on CHEBI:18300 (corrected from an EC number, #114)
- Retrieval date
- 2026-04-29T06:04:17.380972+00:00
- Molecular formula
- C4H4O4
- Inchi
- InChI=1S/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7,8)/b2-1-
- Smiles
- O=C(O)/C=CC(=O)O
Evidence (1)
DATABASE_MATCH
via CultureBotHT
Imported from CultureBotHT.
Occurrence statistics
- Total occurrences
- 4
- Distinct media
- 4
Curation history
| Timestamp | Curator | Action | New status | Changes |
|---|---|---|---|---|
| 2026-04-29T06:04:17.380972+00:00 | audit_integrate_culturebotht | CREATED_FROM_CULTUREBOTHT | MAPPED | Created from CultureBotHT compounds_to_cas.csv (CAS=203-742-5); Imported from CultureBotHT. |
| 2026-05-01T07:35:34.594439+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (CHEBI primary) | |
| 2026-05-01T08:08:30.627442+00:00 | auto_classify_ingredient_type | AUTO_BACKFILL_CHEBI_CHEMISTRY | molecular_formula=C4H4O4; inchi=InChI=1S/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7; smiles=O=C(O)/C=CC(=O)O | |
| 2026-05-02T03:12:16.134533+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula)) | |
| 2026-08-06T00:00:00+00:00 | issue_114_cas_audit LLM | CORRECTED | cas_rn 203-742-5 -> 110-16-7. 203-742-5 is an EC/EINECS registry number (format NNN-NNN-N), not a CAS-RN — the same class of fetch_cas_rn_from_pubchem mis-assignment as Beef extract's 103-47-9 (=CHES) in #114. The replacement is this record's own CHEBI term CHEBI:18300's CAS dbxref, and that term's label matches the substance, so it is evidence rather than inference. The EC number is recorded here rather than discarded: it was correct information in the wrong field. | |
| 2026-08-27T03:16:39.519236+00:00 | refresh_occurrence_statistics | CORRECTED | occurrence_statistics 0/0 -> 4/4 (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] |