2-methyl-1-butanol

CHEBI:48945 chemically defined MAPPED CHEBI CAS_RN_LOOKUP

Ontology mapping

Primary identifier
CHEBI:48945
Ontology label
2-methylbutan-1-ol

Chemical properties

Cas rn
137-32-6
Data source
CultureBotHT compounds_to_cas.csv
Retrieval date
2026-04-29T06:34:31.158938+00:00
Molecular formula
C5H12O
Inchi
InChI=1S/C5H12O/c1-3-5(2)4-6/h5-6H,3-4H2,1-2H3
Smiles
CCC(C)CO

Evidence (1)

DATABASE_MATCH via CultureBotHT

Imported from CultureBotHT. CAS-RN→CHEBI mapping resolved via OAK CHEBI sqlite (cas xref).

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=137-32-6; CHEBI resolved via OAK CHEBI sqlite (cas xref); Imported from CultureBotHT. CAS-RN→CHEBI mapping resolved via OAK CHEBI sqlite (cas xref).
2026-05-01T07:35:31.764136+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-05-01T08:08:27.564405+00:00 auto_classify_ingredient_type AUTO_BACKFILL_CHEBI_CHEMISTRY molecular_formula=C5H12O; inchi=InChI=1S/C5H12O/c1-3-5(2)4-6/h5-6H,3-4H2,1-2H3; smiles=CCC(C)CO
2026-05-02T03:12:11.895966+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula))
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 '2-methylbutan-1-ol'; it matches the ChEBI synonym '2-methyl-1-butanol' on CHEBI:48945. 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).
2026-08-24T00:00:00+00:00 regrade_synonym_matches REGRADED_TO_CAS_RN_LOOKUP mapping_quality SYNONYM_MATCH -> CAS_RN_LOOKUP (#317). The record was created by an explicit CAS-to-ChEBI lookup and its current CAS RN 137-32-6 uniquely resolves by ChEBI xref to CHEBI:48945 '2-methylbutan-1-ol'. CAS_RN_LOOKUP records the method that established this mapping; a lexical grade would discard that provenance. ontology_id is unchanged. The own-identifier SSSOM predicate remains skos:exactMatch under Rule D (#438), independently of mapping quality.