Ontology mapping
- Primary identifier
-
CHEBI:91248 - Ontology label
- L-cysteine hydrochloride hydrate
- Notes
- Created from FEBA ontology enrichment workflow. Used in 13 FEBA media formulations.
Nutritional roles
- Role
- AMINO_ACID_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.
Synonyms (10)
| Synonym | Type | Source | Occurrences |
|---|---|---|---|
| (2R)-2-Amino-3-sulfanyl-propanoic acid hydrochloride monohydrate | EXACT_SYNONYM | kg_microbe | |
| Cystein-HCl x 2 H2O (5% (w/v)) | HYDRATE_FORM | kg_microbe | |
| L--Cysteine・HCL・H2O | HYDRATE_FORM | kg_microbe | |
| L-Cysteine HCl x H2O | HYDRATE_FORM | kg_microbe | |
| L-Cysteine monohydrate monochloride | EXACT_SYNONYM | kg_microbe | |
| L-Cysteine・HCl・H2O | HYDRATE_FORM | kg_microbe | |
| L-cysteine HCl.H2O | HYDRATE_FORM | kg_microbe | |
| L-cysteine hydrochloride hydrate | EXACT_SYNONYM | kg_microbe | |
| (1R)-1-carboxy-2-sulfanylethan-1-aminium chloride--water (1/1) | EXACT_SYNONYM | chebi_synonym_review | |
| L-cysteine hydrochloride--water (1/1) | EXACT_SYNONYM | chebi_synonym_review |
Chemical properties
- Cas rn
- 7048-04-6
- Data source
- FEBA ontology enrichment (via PubChem)
- Retrieval date
- 2026-04-07T10:19:37.160194+00:00
- Molecular formula
- C3H7NO2S.H2O.HCl
- Inchi
- InChI=1S/C3H7NO2S.ClH.H2O/c4-2(1-7)3(5)6;;/h2,7H,1,4H2,(H,5,6);1H;1H2/t2-;;/m0../s1
- Smiles
- Cl.N[C@@H](CS)C(=O)O.O
Evidence (1)
CAS_RN_CROSS_REFERENCE
via PubChem
ChEBI ID CHEBI:91248 found via PubChem CAS-RN cross-reference
Occurrence statistics
- Total occurrences
- 0
- Distinct media
- 0
Curation history
| Timestamp | Curator | Action | New status | Changes |
|---|---|---|---|---|
| 2026-04-07T10:19:37.160184+00:00 | feba_ontology_enrichment_batch | CREATED | MAPPED | Created ingredient file from FEBA ontology enrichment batch with ChEBI ID CHEBI:91248 |
| 2026-04-18T00:00:00+00:00 | cbclaw_kg_microbe_sweep LLM | ADDED_SYNONYMS | MAPPED | Added 8 synonyms from kg-microbe P4.4 enrichment: (2R)-2-Amino-3-sulfanyl-propanoic acid hydrochloride monohydrate, Cystein-HCl x 2 H2O (5% (w/v)), L--Cysteine・HCL・H2O, L-Cysteine HCl x H2O, L-Cysteine monohydrate monochloride, ... (3 more) |
| 2026-05-01T07:35:34.439973+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (CHEBI primary) | |
| 2026-05-01T08:08:30.457410+00:00 | auto_classify_ingredient_type | AUTO_BACKFILL_CHEBI_CHEMISTRY | molecular_formula=C3H7NO2S.H2O.HCl; inchi=InChI=1S/C3H7NO2S.ClH.H2O/c4-2(1-7)3(5)6;;/h2,7H,1; smiles=Cl.N[C@@H](CS)C(=O)O.O | |
| 2026-05-02T03:12:15.632743+00:00 | auto_classify_ingredient_type | AUTO_CLASSIFY_INGREDIENT_TYPE | set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula)) | |
| 2026-06-03T02:06:01.743541+00:00 | infer_roles_from_name_lists | ANNOTATED | Added media role: AMINO_ACID_SOURCE (confidence: 0.80) | |
| 2026-07-20T00:00:00+00:00 | migrate_media_roles_to_facets | ANNOTATED | Migrated legacy media_roles to role facets (#128): AMINO_ACID_SOURCE -> nutritional_roles.AMINO_ACID_SOURCE | |
| 2026-08-20T00:00:00+00:00 | merge_identifier_collisions | MERGED_INTO | Merged into 'L-Cysteine HCl x H2O' on CHEBI:91248 (#414). abbreviation versus full name; identical CAS 7048-04-6 and formula C3H7NO2S.H2O.HCl, both explicitly the monohydrate. Occurrences transferred; kept as a RAW_TEXT synonym there. |