N-Acetylglucosamine

CHEBI:59640 chemically defined MAPPED CHEBI EXACT_MATCH

Ontology mapping

Primary identifier
CHEBI:59640
Ontology label
N-acetylglucosamine
kg-microbe node
CHEBI:59640

Nutritional roles

Synonyms (4)

SynonymTypeSourceOccurrences
Role: Carbon source; Properties: Defined component, Organic compound, Simple component RAW_TEXT CultureMech
N-acetylglucosamines EXACT_SYNONYM kg_microbe
Role: Carbon source; Properties: Organic compound, Defined component, Simple component RAW_TEXT CultureMech
N-acetylglucosamine (Sigma) CATALOG_VARIANT culturemech:output/ingredient_occurrences.tsv

Chemical properties

Cas rn
7512-17-6
Data source
PubChem API
Retrieval date
2026-04-05T19:53:06.464829+00:00

Evidence (1)

DATABASE_MATCH via CultureMech

Imported from CultureMech pipeline, quality=DIRECT_MATCH

Occurrence statistics

Total occurrences
57
Distinct media
57

Curation history

TimestampCuratorActionNew statusChanges
2026-03-09T06:54:18.022301+00:00 import_from_culturemech IMPORTED MAPPED Initial import from CultureMech pipeline
2026-04-05T19:53:06.464862+00:00 fetch_cas_rn_from_pubchem ADDED_CAS_RN MAPPED Added CAS-RN:7512-17-6 from PubChem API via name lookup (N-Acetylglucosamine)
2026-04-18T00:00:00+00:00 cbclaw_kg_microbe_sweep LLM ADDED_SYNONYMS MAPPED Added 1 synonyms from kg-microbe P4.4 enrichment: N-acetylglucosamines
2026-04-19T07:39:23.955331+00:00 audit_mim_merge MERGED_FROM_DUPLICATES MAPPED Absorbed 1 duplicate MIM record(s) into this one: N-acetylglucosamine_2.yaml. Synonyms, curation_history, and occurrence counts were unioned/summed; winner selected by highest occurrence count with preferred_term readability tie-break.
2026-05-01T07:35:34.939290+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-05-02T03:12:16.704911+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-05-29T23:35:36.112009+00:00 extract_roles_from_synonyms ANNOTATED Added media role: CARBON_SOURCE (confidence: 1.00)
2026-06-09T05:23:46.802250+00:00 correct_stale_ontology_labels.py CORRECTED ontology_label 'N-Acetylglucosamine' -> 'N-acetylglucosamine': synced to canonical CHEBI label (preferred_term 'N-Acetylglucosamine' unchanged).
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
2026-08-27T03:16:39.519371+00:00 refresh_occurrence_statistics CORRECTED occurrence_statistics 35/35 -> 57/57 (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]
2026-08-30T04:48:06.233536+00:00 claude_culturemech_alias_backfill ADDED_SYNONYMS Added 1 CultureMech recipe surface form(s) that folded onto this record's published label but were absent from MIM's label index, so CultureMech could not resolve them: 'N-acetylglucosamine (Sigma)' (x1 CultureMech mentions). Source: culturemech:output/ingredient_occurrences.tsv.