Levomenthol

CHEBI:15409 chemically defined MAPPED CHEBI CAS_RN_LOOKUP

Ontology mapping

Primary identifier
CHEBI:15409
Ontology label
(-)-menthol

Synonyms (8)

SynonymTypeSourceOccurrences
(1R,2S,5R)-5-methyl-2-(propan-2-yl)cyclohexan-1-ol EXACT_SYNONYM chebi_synonym_review
(+-)-menthol RAW_TEXT sssom_other_backfill
DL-menthol RAW_TEXT sssom_other_backfill
rac-(1R,2S,5R)-5-methyl-2-(propan-2-yl)cyclohexan-1-ol RAW_TEXT sssom_other_backfill
rac-menthol RAW_TEXT sssom_other_backfill
racementhol RAW_TEXT sssom_other_backfill
racementholum RAW_TEXT sssom_other_backfill
racementol RAW_TEXT sssom_other_backfill

Chemical properties

Cas rn
2216-51-5
Data source
CultureBotHT compounds_to_cas.csv
Retrieval date
2026-04-29T06:34:31.158938+00:00
Molecular formula
C10H20O
Inchi
InChI=1S/C10H20O/c1-7(2)9-5-4-8(3)6-10(9)11/h7-11H,4-6H2,1-3H3/t8-,9+,10-/m1/s1
Smiles
CC(C)[C@@H]1CC[C@@H](C)C[C@H]1O

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=2216-51-5; CHEBI resolved via OAK CHEBI sqlite (cas xref); Imported from CultureBotHT. CAS-RN→CHEBI mapping resolved via OAK CHEBI sqlite (cas xref).
2026-05-01T07:35:34.508422+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-05-01T08:08:30.536782+00:00 auto_classify_ingredient_type AUTO_BACKFILL_CHEBI_CHEMISTRY molecular_formula=C10H20O; inchi=InChI=1S/C10H20O/c1-7(2)9-5-4-8(3)6-10(9)11/h7-11H; smiles=CC(C)[C@@H]1CC[C@@H](C)C[C@H]1O
2026-05-02T03:12:15.747779+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula))
2026-08-24T00:00:00+00:00 regrade_synonym_matches REGRADED_TO_CAS_RN_LOOKUP mapping_quality EXACT_MATCH -> CAS_RN_LOOKUP (#317). The record was created by an explicit CAS-to-ChEBI lookup and its current CAS RN 2216-51-5 uniquely resolves by ChEBI xref to CHEBI:15409 '(-)-menthol'. 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.
2026-09-02T17:40:44.716277+00:00 claude_sssom_surface_form_backfill ADDED_SYNONYMS Recovered 1 surface form(s) that the published SSSOM `other` carried but no curated record did, so a rebuild would have dropped them from KGX: '(+-)-menthol'. Tokens already present on the kg-microbe ontology node were left out as redundant (#520).
2026-09-02T22:41:49.137449+00:00 claude_sssom_surface_form_backfill ADDED_SYNONYMS Recovered 6 surface form(s) that the published SSSOM `other` carried but no curated record did, so a rebuild would have dropped them from KGX: 'DL-menthol'; 'rac-(1R,2S,5R)-5-methyl-2-(propan-2-yl)cyclohexan-1-ol'; 'rac-menthol'; 'racementhol'; 'racementholum'; 'racementol'. Tokens already present on the kg-microbe ontology node were left out as redundant (#520).