Products Description
The compound with CAS number 76656-36-5 is a water-soluble UV absorber, with the chemical name 2,2′-Dihydroxy-4,4′-dimethoxybenzophenone-5,5′-disulfonic acid disodium salt, commonly known as UV Absorber BP-9. Its molecular formula is C15H12Na2O11S2, and its molecular weight is approximately 478.36.
UV Absorber BP-9 is a light yellow crystalline powder, with a melting point of 350°C (decomposes). Its density is not clearly reported, but it can be completely dissolved in water to form a clear solution.
Application
Basic Info
| Product name | Light yellow powder UV Absorber BP-9 CAS 76656-36-5 |
| CAS No. | 76656-36-5 |
| EINECS No. | 278-520-4 |
| Molecular Formula: | C15H12Na2O11S2 |
| Molecular Weight: | 478.36 |
| Melting point | 350°C (dec.) |
| storage temp. | Hygroscopic, -20°C Freezer, Under inert atmosphere |
| solubility | Water (Slightly) |
| color | Pale Yellow to Yellow |
Uses
UV Absorber BP-9 is widely used in sunscreen products, skin care products, and hair care products by efficiently absorbing 280–320 nm UVB rays. Its water-soluble nature makes it suitable for formulating aqueous cosmetics (e.g., sunscreens, moisturizers), protecting the skin from UV damage while avoiding the greasiness of traditional oil-soluble ingredients.
Industrial material protection
As a light stabilizer, BP-9 can be added to water-based coatings, inks, and plastics to inhibit material aging (e.g., yellowing, embrittlement) caused by ultraviolet radiation. For example, in water-based inks, it effectively preserves printed color durability; in water-based coatings, it enhances outdoor weather resistance and extends service life.
Safety Information
UV Absorber BP-9 is an irritant that may cause irritation to the eyes, skin and respiratory system. When in contact, avoid direct contact with skin and eyes, and wear protective glasses and gloves when necessary. When handling or storing, avoid contact with oxidants and strong acids.
Company Profile
Gnee Chem is an enterprise specialising in the research, development, production and sales of phytochemicals and fine chemicals.Our factory was established in 2016 and is located in Henan Province, covering an area of 3,600 square metres. We have a professional, well-equipped and high-quality R&D team with more than 10 years of R&D experience. Our products are widely exported to many countries, such as the United States, Russia, Canada, Australia, Europe, etc., and we provide customers with fast shipping services. We hope to establish long-term and mutually beneficial cooperation with more friends in the future, and provide the best products and services for our customers.
Contact Us
Tel: +86-372-5055135
Mob: +86-13673325456
Email: sales@gneebio.com
FAQ
Can your company accept customisation and meet customers' special specifications?
Yes, we can.
What are your payment terms?
Wire transfer, paypal, western union, money order and bitcoin.
What is your delivery time?
We usually ship within 1-3 days after receiving your payment.
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