Cysteic Acid
✓ EU AllowedIdentification
CAS Number 498-40-8
EINECS / EC 207-861-3
CosIng Ref 55569
Chemical Name (2R)-2-amino-3-sulfopropanoic acid
IUPAC Name —
Formula C3H7NO5S
Mol. Weight 169.16 g/mol
SMILES C(C(C(=O)O)N)S(=O)(=O)O
InChIKey XVOYSCVBGLVSOL-REOHCLBHSA-N
Function & Classification
Primary Function Skin Conditioning
Origin Synthetic
Category Skin Actives
EU Regulatory Status
Safety Profile
Skin Type Compatibility
Fungal Acne Safe ✓ Safe
No toxicology data available yet for this ingredient.
Check SCCS opinions or CIR reports for published safety assessments.
NOAEL · Dermal Absorption % · Sensitization
Formulation Guidelines
Benefits , Brightening
Suppliers & Documents
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Documents