

Benzophenone-4 with CAS 4065-45-6
What is Benzophenone-4?
Benzophenone-4 (BP-4), also known as Sulisobenzone, is a water-soluble UV absorber widely recognized in the cosmetic and personal care industry. It is a white or light yellow powder at room temperature, which can effectively absorb 285~325 nm of ultraviolet light. It is a kind of broad spectrum ultraviolet absorber with high absorption rate, non-toxic, no photosensitization, no teratogenicity, and good light and heat stability.
It is widely used in sunscreen, honey, lotion, oil and other cosmetics. Sunscreen is usually applied to the surface of the skin and has a sunscreen effect to protect the skin. UV absorber BP-4 has the advantages of good light and heat stability, and is widely used in sunscreen cosmetics such as sunscreen cream, cream, honey, lotion, oil, etc. It can also be used as a UV absorber in other water-soluble inks, coatings, etc.
Runtai Chemical is a professional and reliable China manufacturer of Benzophenone-4 with CAS 4065-45-6 with higher purity and lower price. If you are interested in our Benzophenone-4, PLS free to contact us for a free sample!
Product Advantages
- Broad-Spectrum Protection: Effectively absorbs UVA (320-400nm) and UVB (290-320nm) radiation, providing comprehensive sun protection
- Water-Soluble Formula: Unique water solubility makes it ideal for aqueous formulations and lightweight sunscreen products
- High Stability: Excellent photostability ensures long-lasting UV protection without degradation
- Safe & Approved: FDA approved and EU compliant for use in cosmetic formulations
- Skin-Friendly: Low irritation potential, suitable for sensitive skin formulations
- Easy Formulation: Compatible with a wide range of cosmetic ingredients and formulation types
Benzophenone-4 Quick Details
- Chemical Name:Benzophenone-4
- CAS No.: 4065-45-6
- EINECS: 223-772-2
- Molecular Formula: C14H12O6S
- Molecular weight: 308.31
- Appearance:off-White or light yellow powder
- Assay: 99.5%min
- Synonyms:Uvistat1121;UVABSORBERHMBS;TIMTEC-BBSBB002961;spectra-sorbuv284;2-HYDROXY-4-METHOXYBENZOPHENONE-5-SULFONICACID;2-HYDROXY-4-ChemicalbookMETHOXYBENZOPHENONE-5-SULFONICACIDHYDRATE;2-HYDROXY-4-METHOXY-5-SULFOBENZOPHENONE;2-HYDROXY-4-METHOXY-5-SULFONYLBENZOPHENONE;2-Hydroxy-4-methoxybenzophenone-5-sulfonic acid
Benzophenone-4 Typical Properties
| Item | Specification | Results |
| Appearance | Off-white to light yellow crystalline powder,free of foreign matter | Conforms |
| Odor | Faintly characteristci odor | Conforms |
| Identification | UV absorptivities do not differ by more than 3.0% | Conforms |
| Melting Point | ≥140℃ | 181.1℃ |
| Specific extinction(1%,1cm) | E285:460-490
E325:285-315 |
480
292 |
| PH | 1.2-2.2 | 1.6 |
| Turbidity in water | ≤4.0EBC | 0.38EBC |
| Gardner color | 2.0 | 0.8 |
| Purity(HPLC) | ≥99.5% | 99.96% |
| Assay(Titration) | 97.0-103.0% | 99.52% |
| Total impurities | ≤0.5% | 0.02% |
| Water | ≤2.0% | 0.28% |
| Residual solvents | Conforms | Conforms |
| Conclusion | The results conforms with USP standards | |
Benzophenone-4 with CAS 4065-45-6
Benzophenone-4 Applications
- Widely used as anti ultraviolet finishing agent in sunscreen cosmetics such as sunscreen, cream, honey, lotion, oil, etc
- It has good anti-aging and softening effects on cotton fabrics and polyester fibers.
- It can also be used as a UV absorber in other water-soluble inks, coatings, etc
Benzophenone-4 Package & Storage
- Package: 1KG/BAG;25kg/drum
- Storage: Store in a cool place and keep it sealed to avoid direct sunlight.
Hot tags
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