UV Absorber BP-9
- CAS No.76656-36-5
- GradeIndustrial / Pharmaceutical
- Availability● In Stock
High-purity water-soluble UV filter designed for stable protection in cosmetics, inks, and paint formulations.
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Product Overview
UV Absorber BP-9, chemically known as Disodium 2,2'-Dihydroxy-4,4'-dimethoxy-5,5'-disulfobenzophenone, represents a premier class of water-soluble ultraviolet filtering agents. Designed for high-performance industrial and personal care applications, this compound offers exceptional stability and solubility profiles. As a benzophenone derivative featuring sulfonate groups, it provides robust protection against UV radiation while maintaining compatibility with aqueous systems. Our manufacturing process ensures consistent quality, making it an ideal choice for formulators seeking reliable UV protection without compromising product clarity or stability.
Technical Specifications
| Parameter | Specification |
|---|---|
| Chemical Name | Disodium 2,2'-Dihydroxy-4,4'-dimethoxy-5,5'-disulfobenzophenone |
| CAS Number | 76656-36-5 |
| Molecular Formula | C15H12Na2O11S2 |
| Molecular Weight | 478.36 g/mol |
| Appearance | Light yellow crystalline powder |
| Assay | ≥98.0% |
| Hazen Color | ≤6.0 |
| K Value (330nm) | ≥16.0 |
| Melting Point | 350°C (dec.) |
Industrial Applications
The versatility of UV Absorber BP-9 makes it a critical component across multiple sectors. In the cosmetics industry, it is extensively utilized in water-soluble sunscreens, lotions, and hair care products to protect skin and formulations from photodegradation. Its water solubility allows for clear, non-greasy finishes that are highly desirable in modern personal care formulations. Beyond cosmetics, this chemical serves as a vital stabilizer in water-soluble inks and paints. By absorbing harmful UV rays, it prevents color fading and polymer degradation, thereby extending the lifespan and aesthetic quality of coated surfaces and printed materials. Formulators value this ingredient for its ability to integrate seamlessly into complex aqueous systems without precipitation.
Quality Assurance and Storage
We adhere to strict quality control protocols to ensure every batch meets international standards. Each shipment is accompanied by a comprehensive Certificate of Analysis (COA) verifying purity and performance metrics. For optimal preservation, store this product in a cool, dry, and well-ventilated area. Keep containers tightly closed to prevent moisture absorption, which could affect flow properties. The material is classified as a flammable solid organic substance during transport, requiring adherence to UN1325 shipping regulations. Our global logistics network ensures timely delivery with secure packaging options, including standard 25kg drums or custom configurations based on specific client requirements. Contact our technical team for detailed formulation guides and safety data sheets.
