Benzophenone-4
⚠ EU RestrictedIdentification
CAS Number 4065-45-6
EINECS / EC 223-772-2
CosIng Ref 32143
Chemical Name 5-benzoyl-4-hydroxy-2-methoxybenzenesulfonic acid
IUPAC Name —
Formula C14H12O6S
Mol. Weight 308.31 g/mol
InChIKey CXVGEDCSTKKODG-UHFFFAOYSA-N
Function & Classification
Primary Function UV Filter
Secondary Functions UV ABSORBER; UV FILTER
Origin Synthetic
Category UV Filters
Manufacturer Cosmer Kimya
EU Regulatory Status
Max Leave-on 5%
Max Rinse-off 5%
Restrictions Max 5%
Conditions of Use Max 5% in sunscreen (as acid) / max 10% as sodium salt in rinse-off hair.
Safety Profile
2 / 10
Skin Type Compatibility
Fungal Acne Safe ✓ Safe
Toxicology Profile
Sensitization not_sensitizing
Skin Irritation (Draize) irritant
Eye Irritation (Draize) severe_irritant
Formulation Guidelines
pH Stability 1.2 – 2.2
Solubility Structure:
Benefits UV protection
Suppliers & Documents
Cosmer Kimya 🇹🇷 Turkey
Documents