L-Ascorbic acid

CHEBI:29073 chemically defined MAPPED CHEBI EXACT_MATCH

Ontology mapping

Primary identifier
CHEBI:29073
Ontology label
L-ascorbic acid
kg-microbe node
CHEBI:29073

Nutritional roles

Synonyms (15)

SynonymTypeSourceOccurrences
Role: Vitamin; Properties: Defined component, Simple component, Organic compound RAW_TEXT CultureMech
(5R)-5-[(1S)-1,2-dihydroxyethyl]-3,4-dihydroxyfuran-2(5H)-one EXACT_SYNONYM kg_microbe
Ascoltin EXACT_SYNONYM kg_microbe
Ascorbicap EXACT_SYNONYM kg_microbe
Ascorbinsaeure EXACT_SYNONYM kg_microbe
E 300 EXACT_SYNONYM kg_microbe
E-300 EXACT_SYNONYM kg_microbe
E300 EXACT_SYNONYM kg_microbe
L-(+)-ascorbic acid EXACT_SYNONYM kg_microbe
L-threo-hex-2-enono-1,4-lactone EXACT_SYNONYM kg_microbe
acide ascorbique EXACT_SYNONYM kg_microbe
acido ascorbico EXACT_SYNONYM kg_microbe
acidum ascorbicum EXACT_SYNONYM kg_microbe
acidum ascorbinicum EXACT_SYNONYM kg_microbe
Role: Vitamin; Properties: Organic compound, Defined component, Simple component RAW_TEXT CultureMech

Chemical properties

Cas rn
50-81-7
Data source
PubChem API
Retrieval date
2026-04-05T19:52:36.820797+00:00
Molecular formula
C6H8O6
Inchi
InChI=1S/C6H8O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2,5,7-10H,1H2/t2-,5+/m0/s1
Smiles
[H][C@]1([C@@H](O)CO)OC(=O)C(O)=C1O

Evidence (1)

DATABASE_MATCH via CultureMech

Imported from CultureMech pipeline, quality=DIRECT_MATCH

Occurrence statistics

Total occurrences
21
Distinct media
21

Curation history

TimestampCuratorActionNew statusChanges
2026-03-09T06:54:18.022301+00:00 import_from_culturemech IMPORTED MAPPED Initial import from CultureMech pipeline
2026-04-05T19:52:36.820851+00:00 fetch_cas_rn_from_pubchem ADDED_CAS_RN MAPPED Added CAS-RN:50-81-7 from PubChem API via name lookup (L-Ascorbic acid)
2026-04-05T21:48:45.239000+00:00 fetch_cas_rn_from_culturebot_csv ADDED_CAS_RN MAPPED Added CAS-RN:50-81-7 from CultureBotHT compounds_to_cas.csv (matched: L-ascorbic acid)
2026-04-18T00:00:00+00:00 cbclaw_kg_microbe_sweep LLM ADDED_SYNONYMS MAPPED Added 13 synonyms from kg-microbe P4.4 enrichment: (5R)-5-[(1S)-1,2-dihydroxyethyl]-3,4-dihydroxyfuran-2(5H)-one, Ascoltin, Ascorbicap, Ascorbinsaeure, E 300, ... (8 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: L-ascorbic_Acid_2.yaml. Synonyms, curation_history, and occurrence counts were unioned/summed; winner selected by highest occurrence count with preferred_term readability tie-break.
2026-05-01T07:35:34.297740+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-05-01T08:08:30.302028+00:00 auto_classify_ingredient_type AUTO_BACKFILL_CHEBI_CHEMISTRY molecular_formula=C6H8O6; inchi=InChI=1S/C6H8O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2,5; smiles=[H][C@]1([C@@H](O)CO)OC(=O)C(O)=C1O
2026-05-02T03:12:15.446925+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula))
2026-05-29T23:35:36.111597+00:00 extract_roles_from_synonyms ANNOTATED Added media role: VITAMIN_SOURCE (confidence: 1.00)
2026-06-09T05:23:46.784137+00:00 correct_stale_ontology_labels.py CORRECTED ontology_label 'L-Ascorbic acid' -> 'L-ascorbic acid': synced to canonical CHEBI label (preferred_term 'L-Ascorbic acid' unchanged).
2026-07-20T00:00:00+00:00 migrate_media_roles_to_facets ANNOTATED Migrated legacy media_roles to role facets (#128): VITAMIN_SOURCE -> nutritional_roles.VITAMIN_SOURCE
2026-08-27T03:16:39.519116+00:00 refresh_occurrence_statistics CORRECTED occurrence_statistics 10/10 -> 21/21 (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]