DL-2-Aminobutyric acid

cas:2835-81-6 chemically defined MAPPED CHEBI NARROW_MATCH

Ontology mapping

Primary identifier
cas:2835-81-6
Ontology term
CHEBI:35621 — alpha-aminobutyric acid
Ontology label
alpha-aminobutyric acid

Nutritional roles

Rejected enrichment labels (1)

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

Rejected labelDispositionSourceOccurrences
2-aminobutanoic acid REJECTED_LABEL chebi_synonym_review

Chemical properties

Data source
CultureBotHT compounds_to_cas.csv; ChEBI:35621
Retrieval date
2026-09-12T00:00:00+00:00
Molecular formula
C4H9NO2
Cas rn
2835-81-6
Inchi
InChI=1S/C4H9NO2/c1-2-3(5)4(6)7/h3H,2,5H2,1H3,(H,6,7)
Smiles
CCC(N)C(=O)O

Evidence (2)

DATABASE_MATCH via CultureBotHT

SUPERSEDED (#456): the CAS-selected ChEBI term denotes a different stereochemical form. Original note follows. Imported from CultureBotHT. CAS-RN→CHEBI mapping resolved via OAK CHEBI sqlite (cas xref).

CURATOR_JUDGMENT via MIM curation (#456)

The CultureBotHT label and CAS-RN name the DL/racemic form, while CHEBI:35621 is stereo-unspecified and has separate D and L children. No exact local ChEBI term denotes the racemate. Per MAPPING_SEMANTICS.md Section 3, the record now uses cas:2835-81-6 as the exact registry identity plus a narrowMatch to CHEBI:35621.

Occurrence statistics

Total occurrences
0
Distinct media
0

Curation history

TimestampCuratorActionNew statusChanges
2026-04-29T06:34:31.158938+00:00 audit_cas_chebi_followup CREATED_FROM_CAS_LOOKUP MAPPED Created from CultureBotHT CAS-RN=2835-81-6; CHEBI resolved via OAK CHEBI sqlite (cas xref); Imported from CultureBotHT. CAS-RN→CHEBI mapping resolved via OAK CHEBI sqlite (cas xref).
2026-05-01T07:35:33.176468+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-05-01T08:08:29.109678+00:00 auto_classify_ingredient_type AUTO_BACKFILL_CHEBI_CHEMISTRY molecular_formula=C4H9NO2; inchi=InChI=1S/C4H9NO2/c1-2-3(5)4(6)7/h3H,2,5H2,1H3,(H,6; smiles=CCC(N)C(=O)O
2026-05-02T03:12:13.897203+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula))
2026-05-30T00:34:39.371338+00:00 infer_roles_from_chebi_ancestry ANNOTATED Added media role: AMINO_ACID_SOURCE (confidence: 0.70)
2026-07-20T00:00:00+00:00 migrate_media_roles_to_facets ANNOTATED Migrated legacy media_roles to role facets (#128): AMINO_ACID_SOURCE -> nutritional_roles.AMINO_ACID_SOURCE
2026-09-12T00:00:00+00:00 fix_cas_stereochemical_identity_conflicts REGROUNDED_STEREOCHEMICAL_FORM MAPPED identifier CHEBI:35621 -> cas:2835-81-6; ontology mapping set to NARROW_MATCH CHEBI:35621 ('alpha-aminobutyric acid'). Replaced target-derived chemistry and marked 1 inherited ChEBI synonym(s) as REJECTED_LABEL (#456).