What is the NOAEL for Cysteamine hydrochloride?
Cysteamine hydrochloride has 4 NOAEL studies in the database. The lowest reported value is IF1B771SVB UNII. Source: openFDA substances.
NOAEL Data
REACH Registered
Cosmetic Ingredient
Cysteamine hydrochloride
Also known as: Ethanethiol, 2-amino-, hydrochloride, Ethanethiol, 2-amino-, hydrochloride (1:1), Mercaptamine hydrochloride, 1-Aminoethane-2-thiol hydrochloride, Bekaptan (+8 more)
CAS 156-57-0
Cysteamine hydrochloride (CAS 156-57-0) is a chemical substance. Key regulatory status: REACH registered, 1 regulatory/inventory list, cosmetic ingredient cross-reference; source data from EPA ToxValDB, EPA CPDat, AICIS, ECHA REACH.
SOURCE
noael studies public
NOAEL studies
4
SOURCE
chemical inventory jurisdictions
Regulatory lists
1
SOURCE
eu clp annex vi
GHS signal
Not classified
Chemical Identity
CAS, identifiers, formula, and alternate names for the matched substance record.
SOURCE
DSSTox identifiers
19 fields
Name
Cysteamine hydrochloride
CAS Number
156-57-0
DTXSID
DTXSID8045779
Molecular Formula
C2H7NS.ClH
InChI Key
OGMADIBCHLQMIP-UHFFFAOYSA-N
Monoisotopic Mass
113.006598
Synonyms
Ethanethiol, 2-amino-, hydrochlorideEthanethiol, 2-amino-, hydrochloride (1:1)Mercaptamine hydrochloride1-Aminoethane-2-thiol hydrochlorideBekaptanEINECS 205-858-1Ethylamine, 2-mercapto-, hydrochlorideMercaptoethylamine hydrochlorideNSC 21116eta-Mercaptoethylamine hydrochloridebeta-Mercaptoaethylamin chlorhydratCysteaminhydrochlorid
Functional Uses
Industrial and product-use categories associated with this substance.
SOURCE
EPA CPDat
3 records
AntioxidantReducing agentHair waving or straightening
Regulatory Lists
Inventory, screening, and regulatory list matches from public chemical databases.
SOURCE
EPA CPDat
1 records
| List | Keyword | Source |
|---|---|---|
| pharmaceutical | FDA | United States Food and Drug Administration (FDA) |
NOAEL Studies
Toxicology endpoints rendered from public NOAEL study rows.
SOURCE
NOAEL studies
Showing 4 of 4 studies
| Value | Unit | Endpoint | Route | Species | Source |
|---|---|---|---|---|---|
| IF1B771SVB | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| IF1B771SVB | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| IF1B771SVB | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| IF1B771SVB | UNII | FDA UNII substance identifier | - | - | openFDA substances |
Showing 4 of 4 studies
REACH Registration
Registration status from the ECHA REACH registered substances database.
SOURCE
ECHA (EU)
1 records
| Status | Name | EC Number | Link |
|---|---|---|---|
| Registered | Mercaptamine hydrochloride | 205-858-1 | ECHA overview → |
Australian Status (AICIS)
Australian industrial chemicals inventory status and applicable conditions.
SOURCE
AICIS inventory
1 records
Inventory Status
listed
Cosmetic Safety Profile
Same-CAS cosmetic ingredient record for cross-vertical context.
SOURCE
CosIng / Ingredients DB
EU Status
restricted
Max
-
Category
Other
Pharmaceutical Data
Same-CAS pharmaceutical records from drug and bioactivity sources.
SOURCE
EMBL-EBI ChEMBL
CYSTEAMINE HYDROCHLORIDE
ChEMBL Phase
4
Adverse Events
22
Bioactivity
2
Frequently Asked Questions
What regulatory lists include Cysteamine hydrochloride?
Cysteamine hydrochloride appears on 1 regulatory/inventory list including pharmaceutical. Source: EPA CPDat.
Is Cysteamine hydrochloride used in cosmetics?
Yes, Cysteamine hydrochloride is also indexed as a cosmetic ingredient under the name Cysteamine HCl. View the full cosmetic safety profile on the ingredient page for detailed safety data, SCCS opinions, and regulatory status.
Where does the safety data for Cysteamine hydrochloride come from?
Safety data is sourced from EPA ToxValDB, EPA CPDat, AICIS (Australian Industrial Chemicals Introduction Scheme), EPA DSSTox, ECHA REACH, CosIng / Ingredients DB, ChEMBL / DailyMed. All data traces to primary regulatory sources and is updated from official government databases.
Is Cysteamine hydrochloride used outside industrial chemicals?
Cysteamine hydrochloride also appears in cosmetics, pharmaceutical databases.