2-Mercaptoethanesulfonate

CHEBI:17905 chemically defined MAPPED CHEBI EXACT_MATCH

Ontology mapping

Primary identifier
CHEBI:17905
Ontology label
coenzyme M
kg-microbe node
CHEBI:17905

Nutritional roles

Synonyms (17)

SynonymTypeSourceOccurrences
Cross-references: KEGG:com RAW_TEXT CultureMech
1-THIOETHANESULFONIC ACID EXACT_SYNONYM kg_microbe
2-Mercaptoethanesulfonic acid EXACT_SYNONYM kg_microbe
2-mercaptoethanesulphonic acid EXACT_SYNONYM kg_microbe
2-sulfanylethanesulfonic acid EXACT_SYNONYM kg_microbe
2-sulfanylethylsulfonate EXACT_SYNONYM kg_microbe
CoM EXACT_SYNONYM kg_microbe
Coenzym M EXACT_SYNONYM kg_microbe
HS-CoM EXACT_SYNONYM kg_microbe
beta-mercaptoethanesulfonic acid EXACT_SYNONYM kg_microbe
coenzima M EXACT_SYNONYM kg_microbe
reduced CoM EXACT_SYNONYM kg_microbe
reduced coenzyme M EXACT_SYNONYM kg_microbe
Coenzyme M EXACT_SYNONYM merged_from_duplicate_mim_record
Role: Growth factor; Properties: Organic compound, Defined component, Simple component RAW_TEXT CultureMech
(sodium salt) RAW_TEXT CultureMech
2-Mercaptoethanesulfonic acid (Coenzyme M) RAW_TEXT culturemech:output/ingredient_occurrences.tsv

Chemical properties

Cas rn
3375-50-6
Data source
PubChem (via CHEBI:17905)
Retrieval date
2026-04-09T00:32:50.689620+00:00
Molecular formula
C2H6O3S2
Inchi
InChI=1S/C2H6O3S2/c3-7(4,5)2-1-6/h6H,1-2H2,(H,3,4,5)
Smiles
O=S(=O)(O)CCS

Evidence (1)

DATABASE_MATCH via CultureMech

Imported from CultureMech pipeline, quality=DIRECT_MATCH

Occurrence statistics

Total occurrences
79
Distinct media
79

Curation history

TimestampCuratorActionNew statusChanges
2026-03-09T06:54:18.022301+00:00 import_from_culturemech IMPORTED MAPPED Initial import from CultureMech pipeline
2026-04-05T21:52:12.067590+00:00 fetch_cas_rn_from_cactus ADDED_CAS_RN MAPPED Added CAS-RN:3375-50-6 from NCI CACTUS via name lookup (2-Mercaptoethanesulfonic acid)
2026-04-09T00:32:50.689620+00:00 enrich_mim_cas_rn_batch CAS_RN_ADDED MAPPED Added CAS-RN 3375-50-6 from PubChem (via CHEBI:17905)
2026-04-18T00:00:00+00:00 cbclaw_kg_microbe_sweep LLM ADDED_SYNONYMS MAPPED Added 12 synonyms from kg-microbe P4.4 enrichment: 1-THIOETHANESULFONIC ACID, 2-Mercaptoethanesulfonic acid, 2-mercaptoethanesulphonic acid, 2-sulfanylethanesulfonic acid, 2-sulfanylethylsulfonate, ... (7 more)
2026-04-18T00:00:00+00:00 cbclaw_kg_microbe_sweep LLM ADDED_SYNONYMS MAPPED Added 11 synonyms from kg-microbe P4.4 enrichment: 1-THIOETHANESULFONIC ACID, 2-mercaptoethanesulphonic acid, 2-sulfanylethanesulfonic acid, 2-sulfanylethylsulfonate, CoM, ... (6 more)
2026-04-19T07:39:23.955331+00:00 audit_mim_merge MERGED_FROM_DUPLICATES MAPPED Absorbed 2 duplicate MIM record(s) into this one: Coenzyme_M.yaml, 2-mercaptoethanesulfonic_Acid.yaml. Synonyms, curation_history, and occurrence counts were unioned/summed; winner selected by highest occurrence count with preferred_term readability tie-break.
2026-05-01T07:35:31.756568+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-05-01T08:08:27.555976+00:00 auto_classify_ingredient_type AUTO_BACKFILL_CHEBI_CHEMISTRY molecular_formula=C2H6O3S2; inchi=InChI=1S/C2H6O3S2/c3-7(4,5)2-1-6/h6H,1-2H2,(H,3,4,; smiles=O=S(=O)(O)CCS
2026-05-02T03:12:11.886725+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula))
2026-06-09T04:56:30.247350+00:00 claude_in_session_curation ANNOTATED Added media role: COFACTOR_PROVIDER (confidence: 0.60)
2026-06-09T05:23:46.707832+00:00 correct_stale_ontology_labels.py CORRECTED ontology_label '2-Mercaptoethanesulfonate' -> 'coenzyme M': synced to canonical CHEBI label (preferred_term '2-Mercaptoethanesulfonate' unchanged).
2026-07-20T00:00:00+00:00 migrate_media_roles_to_facets ANNOTATED Migrated legacy media_roles to role facets (#128): COFACTOR_PROVIDER -> nutritional_roles.COFACTOR_PROVIDER
2026-08-27T03:16:39.518248+00:00 refresh_occurrence_statistics CORRECTED occurrence_statistics 52/52 -> 79/79 (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: '2-Mercaptoethanesulfonic acid (Coenzyme M)' (x2 CultureMech mentions). Source: culturemech:output/ingredient_occurrences.tsv.