What is the NOAEL for Procysteine?
Procysteine has 4 NOAEL studies in the database. The lowest reported value is X7063P804E UNII. Source: openFDA substances.
NOAEL Data
Cosmetic Ingredient
Procysteine
CAS 19771-63-2
Procysteine (CAS 19771-63-2) is a chemical substance. Key regulatory status: cosmetic ingredient cross-reference; source data from EPA ToxValDB, EPA CPDat.
View cosmetic safety profile for OXOTHIAZOLIDINECARBOXYLIC ACID →
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
6 fields
Name
Procysteine
CAS Number
19771-63-2
DTXSID
DTXSID501318247
Molecular Formula
C4H5NO3S
InChI Key
BMLMGCPTLHPWPY-REOHCLBHSA-N
Monoisotopic Mass
146.999014199
Functional Uses
Industrial and product-use categories associated with this substance.
SOURCE
EPA CPDat
1 records
Softener and conditioner
NOAEL Studies
Toxicology endpoints rendered from public NOAEL study rows.
SOURCE
NOAEL studies
Showing 4 of 4 studies
| Value | Unit | Endpoint | Route | Species | Source |
|---|---|---|---|---|---|
| X7063P804E | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| X7063P804E | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| X7063P804E | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| X7063P804E | UNII | FDA UNII substance identifier | - | - | openFDA substances |
Showing 4 of 4 studies
Cosmetic Safety Profile
Same-CAS cosmetic ingredient record for cross-vertical context.
SOURCE
CosIng / Ingredients DB
EU Status
permitted
Max
-
Category
Skin Conditioning
Pharmaceutical Data
Same-CAS pharmaceutical records from drug and bioactivity sources.
SOURCE
EMBL-EBI ChEMBL
PROCYSTEINE
ChEMBL Phase
2
Adverse Events
0
Bioactivity
0
Frequently Asked Questions
Is Procysteine used in cosmetics?
Yes, Procysteine is also indexed as a cosmetic ingredient under the name OXOTHIAZOLIDINECARBOXYLIC ACID. 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 Procysteine come from?
Safety data is sourced from EPA ToxValDB, EPA CPDat, EPA DSSTox, CosIng / Ingredients DB, ChEMBL / DailyMed. All data traces to primary regulatory sources and is updated from official government databases.
Is Procysteine used outside industrial chemicals?
Procysteine also appears in cosmetics, pharmaceutical databases.