Thiamine-HCl x 2 H2O

CHEBI:132751 chemically defined MAPPED CHEBI EXACT_MATCH

Ontology mapping

Primary identifier
CHEBI:132751
Ontology label
thiamine hydrochloride dihydrate

Nutritional roles

Synonyms (10)

SynonymTypeSourceOccurrences
Role: Vitamin; Properties: Organic compound, Defined component, Simple component RAW_TEXT CultureMech
Thiamine-HCl·2H2O HYDRATE_FORM kg_microbe
thiamine chloride hydrochloride dihydrate EXACT_SYNONYM kg_microbe
thiamine dichloride dihydrate EXACT_SYNONYM kg_microbe
thiamine hydrochloride dihydrate EXACT_SYNONYM kg_microbe
thiamine(2+) dichloride dihydrate EXACT_SYNONYM kg_microbe
3-[(4-amino-2-methylpyrimidin-5-yl)methyl]-5-(2-hydroxyethyl)-4-methyl-1,3-thiazol-3-ium chloride hydrochloride--water (1/2) EXACT_SYNONYM chebi_synonym_review
3-[(4-azaniumyl-2-methylpyrimidin-5-yl)methyl]-5-(2-hydroxyethyl)-4-methyl-1,3-thiazol-3-ium chloride--water (1/2) EXACT_SYNONYM chebi_synonym_review
Thiamine・HCl・2H2O RAW_TEXT culturemech:output/ingredient_occurrences.tsv
Thiamine·HCl·2H2O RAW_TEXT culturemech:output/ingredient_occurrences.tsv

Chemical properties

Cas rn
13465-05-9
Data source
PubChem API (preprocessed)
Retrieval date
2026-04-05T23:47:06.145091+00:00
Molecular formula
C12H18N4OS.2Cl.2H2O
Inchi
InChI=1S/C12H17N4OS.2ClH.2H2O/c1-8-11(3-4-17)18-7-16(8)6-10-5-14-9(2)15-12(10)13;;;;/h5,7,17H,3-4,6H2,1-2H3,(H2,13,14,15);2*1H;2*1H2/q+1;;;;/p-1
Smiles
Cc1ncc(C[n+]2csc(CCO)c2C)c([NH3+])n1.O.O.[Cl-].[Cl-]

Evidence (1)

DATABASE_MATCH via CultureMech

Imported from CultureMech pipeline, quality=DIRECT_MATCH

Occurrence statistics

Total occurrences
441
Distinct media
441

Curation history

TimestampCuratorActionNew statusChanges
2026-03-09T06:54:18.022301+00:00 import_from_culturemech IMPORTED MAPPED Initial import from CultureMech pipeline
2026-04-05T23:47:06.145100+00:00 fetch_cas_rn_with_preprocessing ADDED_CAS_RN MAPPED Added CAS-RN:13465-05-9 from PubChem API (preprocessed) via name preprocessing (Thiamine-HCl x 2 H2O)
2026-04-18T00:00:00+00:00 cbclaw_kg_microbe_sweep LLM ADDED_SYNONYMS MAPPED Added 5 synonyms from kg-microbe P4.4 enrichment: Thiamine-HCl·2H2O, thiamine chloride hydrochloride dihydrate, thiamine dichloride dihydrate, thiamine hydrochloride dihydrate, thiamine(2+) dichloride dihydrate
2026-05-01T07:35:36.594590+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-05-01T08:08:32.668072+00:00 auto_classify_ingredient_type AUTO_BACKFILL_CHEBI_CHEMISTRY molecular_formula=C12H18N4OS.2Cl.2H2O; inchi=InChI=1S/C12H17N4OS.2ClH.2H2O/c1-8-11(3-4-17)18-7-; smiles=Cc1ncc(C[n+]2csc(CCO)c2C)c([NH3+])n1.O.O.[Cl-].[Cl
2026-05-02T03:12:18.822644+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula))
2026-05-29T23:35:36.113146+00:00 extract_roles_from_synonyms ANNOTATED Added media role: VITAMIN_SOURCE (confidence: 1.00)
2026-06-09T05:23:46.843119+00:00 correct_stale_ontology_labels.py CORRECTED ontology_label 'Thiamine-HCl x 2 H2O' -> 'thiamine hydrochloride dihydrate': synced to canonical CHEBI label (preferred_term 'Thiamine-HCl x 2 H2O' unchanged).
2026-07-20T00:00:00+00:00 migrate_media_roles_to_facets ANNOTATED Migrated legacy media_roles to role facets (#128): VITAMIN_SOURCE -> nutritional_roles.VITAMIN_SOURCE
2026-08-27T03:16:39.519956+00:00 refresh_occurrence_statistics CORRECTED occurrence_statistics 50/579 -> 441/441 (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 2 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: 'Thiamine・HCl・2H2O' (x8 CultureMech mentions); 'Thiamine·HCl·2H2O' (x1 CultureMech mentions). Source: culturemech:output/ingredient_occurrences.tsv.