D-Maltose monohydrate

Ontology mapping

Primary identifier: cas:6363-53-7
Ontology term: CHEBI:17306 — maltose
Ontology label: maltose

Nutritional roles

Role
CARBON_SOURCE
Confidence
0.8
Evidence
- Reference type
  COMPUTATIONAL_PREDICTION
  Reference text
  Inferred from curated media-role name pattern
  Curator note
  Provisional role from a curated name-pattern rule; review recommended.
Role
ENERGY_SOURCE
Confidence
0.7
Evidence
- Reference type
  COMPUTATIONAL_PREDICTION
  Reference text
  Canonical energy substrate (catabolised for energy)
  Curator note
  Provisional ENERGY_SOURCE added alongside CARBON_SOURCE; review recommended.

Synonyms (1)

Synonym	Type	Source	Occurrences
Maltose monohydrate	EXACT_SYNONYM	culturebotht

Rejected enrichment labels (2)

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

Rejected label	Disposition	Source	Occurrences
alpha-D-glucopyranosyl-(1->4)-D-glucopyranose	REJECTED_LABEL	chebi_synonym_review
alpha-D-glucopyranosyl-(1->4)-D-glucose	REJECTED_LABEL	chebi_synonym_review

Chemical properties

Cas rn: 6363-53-7
Data source: CultureBotHT compounds_to_cas.csv
Retrieval date: 2026-04-29T06:51:33.117170+00:00
Molecular formula: C12H24O12
Smiles: C(C1C(C(C(C(O1)OC(C(CO)O)C(C(C=O)O)O)O)O)O)O.O
Inchi: InChI=1S/C12H22O11.H2O/c13-1-4(16)7(18)11(5(17)2-14)23-12-10(21)9(20)8(19)6(3-15)22-12;/h1,4-12,14-21H,2-3H2;1H2/t4-,5+,6+,7+,8+,9-,10+,11+,12+;/m0./s1
Pubchem cid: 23615261

Evidence (3)

DATABASE_MATCH via CultureBotHT

Imported from CultureBotHT. CAS-RN 6363-53-7 present, but no CHEBI entry exists for the monohydrate specifically (checked OAK CHEBI sqlite + PubChem CID synonyms). FEBA/Hans80 panels: FEBA_carbon. Used in 9 CultureBot media; samples: Mega, ZMB Gut, SGW Northen Exometabolite mix 5x…. Curator can promote to a CHEBI primary if/when CHEBI adds D-maltose monohydrate.

MANUAL_REVIEW via family_mismatch_fix

fix(family-mismatch): was CHEBI:233428 (5-(N-ethyl-N-isopropyl) amiloride) from a stale pubchem-xref hit on PubChem CID 23615261; the bogus CHEBI was removed from the published SSSOM in PR #2 / commit 887ee9f and the ontology_mapping is now retargeted at CHEBI:17306 (maltose) as the correct narrowMatch parent. D-Maltose monohydrate is a hydrate of D-maltose, which has no separate CHEBI; maltose (CHEBI:17306) is the closest available parent.

DATABASE_MATCH via MIM curation (#342)

mapping_quality NARROW_MATCH -> CLOSE_MATCH, predicate skos:narrowMatch -> skos:closeMatch. narrowMatch asserts this record is *narrower in meaning* than CHEBI:17306 ('maltose') — a subsumption ChEBI itself denies: it files hydrates under CHEBI:35505 'hydrate', never under the anhydrous compound, which is not an ancestor even transitively. A hydrate is a distinct substance containing the anhydrous form, not a specialization of it. closeMatch claims similarity without subsumption. The ontology_id and the record's own identifier are unchanged.

Occurrence statistics

Total occurrences: 20
Distinct media: 20

Curation history

Timestamp	Curator	Action	New status	Changes
2026-04-29T06:51:33.117170+00:00	audit_add_remaining_culturebotht	CREATED_FROM_CAS_FALLBACK	MAPPED	Created with cas:6363-53-7 as primary identifier; no CHEBI entry exists for this compound.
2026-05-01T07:35:33.092139+00:00	auto_classify_ingredient_type	AUTO_CLASSIFY_INGREDIENT_TYPE		set ingredient_type=SINGLE_INGREDIENT (cas: primary (defined chemical))
2026-05-02T02:52:36.774724+00:00	auto_classify_ingredient_type	AUTO_BACKFILL_PUBCHEM_CHEMISTRY		molecular_formula=C12H24O12; smiles=C(C1C(C(C(C(O1)OC(C(CO)O)C(C(C=O)O)O)O)O)O)O.O; inchi=InChI=1S/C12H22O11.H2O/c13-1-4(16)7(18)11(5(17)2-1
2026-05-02T03:12:13.781876+00:00	auto_classify_ingredient_type	AUTO_CLASSIFY_INGREDIENT_TYPE		set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula))
2026-05-02T04:45:13.113507+00:00	backfill_parent_terms	BACKFILL_PARENT_CHEBI		set ontology_mapping parent=CHEBI:233428 (pubchem-xref)
2026-06-03T02:06:01.738635+00:00	infer_roles_from_name_lists	ANNOTATED		Added media role: CARBON_SOURCE (confidence: 0.80)
2026-06-04T05:38:59.200618+00:00	infer_energy_source	ANNOTATED		Added media role: ENERGY_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): CARBON_SOURCE -> nutritional_roles.CARBON_SOURCE; ENERGY_SOURCE -> nutritional_roles.ENERGY_SOURCE
2026-08-13T00:00:00+00:00	regrade_hydrate_to_close_match	REGRADED_HYDRATE_TO_CLOSE_MATCH		mapping_quality NARROW_MATCH -> CLOSE_MATCH (#342); a hydrate is not subsumed by its anhydrous form, and ChEBI does not model it as such.
2026-08-27T03:16:39.518685+00:00	refresh_occurrence_statistics	CORRECTED		occurrence_statistics 9/9 -> 20/20 (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]
2026-09-22T20:41:14.285965+00:00	claude LLM	REJECTED_PARENT_NAME_SYNONYMS		Retyped names of the parent compound or of a different hydrate as provenance-only REJECTED_LABEL, because this record is a distinct salt, hydrate or tombstone form and the label index resolved the parent's name here (#232): 'alpha-D-glucopyranosyl-(1->4)-D-glucopyranose'; 'alpha-D-glucopyranosyl-(1->4)-D-glucose'. Preserved original text and source metadata. No identity, mapping, role, or remaining-synonym claim was adjudicated.