What is the NOAEL for 2-Aminoethanesulfinic acid?
2-Aminoethanesulfinic acid has 4 NOAEL studies in the database. The lowest reported value is 5L08GE4332 UNII. Source: openFDA substances.
NOAEL Data
REACH Registered
Cosmetic Ingredient
2-Aminoethanesulfinic acid
Also known as: Hypotaurine, Ethanesulfinic acid, 2-amino-, UNII-5L08GE4332, 2-ammonioethanesulfinate, 2-azaniumylethane-1-sulfinate (+2 more)
CAS 300-84-5
2-Aminoethanesulfinic acid (CAS 300-84-5) is a chemical substance. Key regulatory status: REACH registered, cosmetic ingredient cross-reference; source data from EPA ToxValDB, EPA CPDat, ECHA REACH.
View cosmetic safety profile for Aminoethanesulfinic Acid (Hypotaurine) →
SOURCE
noael studies public
NOAEL studies
4
SOURCE
chemical inventory jurisdictions
Regulatory lists
0
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
13 fields
Name
2-Aminoethanesulfinic acid
CAS Number
300-84-5
DTXSID
DTXSID8075380
Molecular Formula
C2H7NO2S
InChI Key
VVIUBCNYACGLLV-UHFFFAOYSA-N
Monoisotopic Mass
109.01975
Synonyms
HypotaurineEthanesulfinic acid, 2-amino-UNII-5L08GE43322-ammonioethanesulfinate2-azaniumylethane-1-sulfinate2-mmonioethane-1-sulfinatehypotaurine zwitterion
Functional Uses
Industrial and product-use categories associated with this substance.
SOURCE
EPA CPDat
2 records
AntioxidantReducing agent
NOAEL Studies
Toxicology endpoints rendered from public NOAEL study rows.
SOURCE
NOAEL studies
Showing 4 of 4 studies
| Value | Unit | Endpoint | Route | Species | Source |
|---|---|---|---|---|---|
| 5L08GE4332 | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| 5L08GE4332 | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| 5L08GE4332 | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| 5L08GE4332 | 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 | 2-aminoethanesulfinic acid | 428-720-4 | ECHA overview → |
Cosmetic Safety Profile
Same-CAS cosmetic ingredient record for cross-vertical context.
SOURCE
CosIng / Ingredients DB
EU Status
permitted
Max
-
Category
Antioxidant
Pharmaceutical Data
Same-CAS pharmaceutical records from drug and bioactivity sources.
SOURCE
EMBL-EBI ChEMBL
HYPOTAURINE
ChEMBL Phase
Not listed
Adverse Events
0
Bioactivity
1
Frequently Asked Questions
Is 2-Aminoethanesulfinic acid used in cosmetics?
Yes, 2-Aminoethanesulfinic acid is also indexed as a cosmetic ingredient under the name Aminoethanesulfinic Acid (Hypotaurine). 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 2-Aminoethanesulfinic acid come from?
Safety data is sourced from EPA ToxValDB, EPA CPDat, EPA DSSTox, ECHA REACH, CosIng / Ingredients DB, ChEMBL / DailyMed. All data traces to primary regulatory sources and is updated from official government databases.
Is 2-Aminoethanesulfinic acid used outside industrial chemicals?
2-Aminoethanesulfinic acid also appears in cosmetics, pharmaceutical databases.