Zhishang Chemical

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UV-9 CAS 131-57-7

Molecular Formula: C14H12O3

Formula Weight: 228.24

ZSpharmac: UV-9 Cosmetic Raw Material Suppliers

Product Name: UV-9
CAS No: 131-57-7
Purity: 99%

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Basic Info

Product Name:UV-9
Other Names:Oxybenzone
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:White to Light Yellow Crystalline Powder
EINECS No.:205-031-5
Provide:UV-9 MSDS;

What is UV-9?

UV-9, chemically known as 2-hydroxy-4-n-octyloxybenzophenone, is a widely used UV absorber belonging to the benzophenone class of compounds. In the field of chemical raw materials and polymer materials science, UV-9 plays a vital role, especially in plastics, coatings, adhesives and personal care products, for protection against UV-induced degradation and aging.

The chemical structure of UV-9 contains a benzene ring and a ketone group, as well as a hydroxyl group (-OH) and a longer alkoxy chain (n-octyloxy) attached to the benzene ring. This specific structure gives it good light stability and UV absorption ability, especially for UVA band (about 320-400 nanometers) light with high absorption effect. Its molecular formula is C18H22O3 and its molecular weight is 286.36 g/mol.

UV-9 Property

Melting point 62-64 °C(lit.)
Boiling point 150-160 °C5 mm Hg(lit.)
density 1,3 g/cm3
vapor pressure 0.001Pa at 25℃
refractive index 1.5805 (estimate)
Fp 216°C
storage temp. 2-8°C
solubility 95% ethanol: soluble50mg/mL, clear, colorless
form Crystalline Powder
color White to light yellow
Odorylsh. cryst., rose-like odor
Water Solubility <0.1 g/100 mL at 20 ºC


UV-9 Uses

1. Plastics and rubber industry
Anti-aging protection: UV-9 can effectively absorb ultraviolet rays in the wavelength range of 290-400nm, significantly reducing the photo-oxidative degradation of plastics (such as PE, PP, PVC) and rubber products caused by ultraviolet irradiation, preventing material discoloration, strength reduction and embrittlement and extend the service life of the product.
Application of transparent products: For plastic products that need to maintain transparency, such as films, sheets, and transparent packaging materials, UV-9 is an ideal choice because of its good transparency.

2. Coatings and paints
Enhanced outdoor weather resistance: In the fields of architectural coatings, ship paint, automobile paint, etc., the addition of UV-9 can significantly improve the weather resistance of the coating, prevent fading, powdering and cracking of the coating caused by ultraviolet rays, and maintain bright colors and structure Integrity.
Wood protection: Used as a protective coating for wooden furniture and outdoor wooden structures, UV-9 can effectively prevent the aging and cracking of wood due to ultraviolet radiation and extend the service life of the wood.

3. Cosmetics and personal care products
Sunscreen formula: In sunscreen, isolation cream and other cosmetics, UV-9 is used as a sunscreen agent in the UVA segment. It can absorb high-energy UVA radiation and prevent skin from sunburn, tanning and photoaging. It is an indispensable ingredient in sunscreen products. one.
Skin care products: In anti-aging and whitening products, UV-9 helps protect skin health and reduce the formation of spots by preventing skin damage caused by ultraviolet rays.

4. Agricultural film
Light control: Adding UV-9 to agricultural plastic films can control the amount of transmitted ultraviolet rays, protect crops from ultraviolet damage, and at the same time adjust light conditions to promote crop growth.

5. Adhesives and Sealing Materials
Stable performance: Used as adhesives and sealing materials for outdoor use, UV-9 can prevent performance degradation caused by ultraviolet rays, maintain adhesion and elasticity, and is suitable for roof waterproofing, building sealing, etc.

UV-9 Prominent Applications in Cosmetics

1. High-efficiency UVA protection
UV-9 specializes in absorbing ultraviolet rays in the UVA band (320-400 nanometers). Although this part of ultraviolet rays is not as direct as UVB to cause sunburn, it can penetrate into the dermis of the skin and cause skin photoaging, such as the formation of wrinkles, sagging, and spots. Therefore, UV-9 is used as the main UVA protection ingredient in sunscreens, primers and other sunscreen cosmetics to provide comprehensive anti-photoaging protection for the skin.

2. Photostability and long-lasting protection
UV-9 has good photostability and chemical stability. Even under long-term sunlight exposure, it can maintain its ability to absorb ultraviolet rays and provide long-lasting protection for the skin. This stability enables sunscreen products containing UV-9 to effectively resist ultraviolet rays for a long time, reduce the frequency of re-application, and improve user experience.

3. Formula compatibility
As an organic chemical raw material, UV-9 has good compatibility in cosmetic formulas and can be integrated with a variety of emulsification systems, oils, and other sunscreens (such as UVB absorbers) to form a stable and efficient sunscreen system. This makes it highly practical in the development of sunscreen products. It can be used alone or in combination with other sunscreens to achieve a broad-spectrum sunscreen effect.

4. Transparency and skin feel
The molecular design of UV-9 makes it transparent in the visible light range, without affecting the transparency or color of cosmetics, and is suitable for all types of transparent or colored sunscreen products. In addition, it feels lighter on the skin and does not leave a heavy or greasy feeling, which improves the comfort and acceptance of cosmetics.


National Center for Biotechnology Information. “PubChem Compound Summary for CID 4632, Oxybenzone” PubChemhttps://pubchem.ncbi.nlm.nih.gov/compound/Oxybenzone. Accessed 25 June, 2024.

As a company specializing in the production and supply of UV-9 raw materials, we are committed to providing customers with high-quality products and preferential prices. We have rich experience and technology to ensure the quality and stable supply of our products. No matter where you are, we can provide you with the UV-9 raw materials you need to support your production and research and development.

We always adhere to the principle of honest operation, strictly control product quality, and serve every customer with a customer-first attitude. Over the years, we have established good cooperative relations with domestic and foreign customers and won their trust and praise.

If you have any needs or are interested in our products, please contact our service staff directly, and we will wholeheartedly provide you with the best service and products. Looking forward to cooperating with you and developing together!

Company Profile and Corporate Culture

Company Profile:

ZhiShang Chemical is owned by ZhiShang Group is a professional new-type chemicals enterprise combined into research and development, production and sales .

The company’s competitive product is pharmaceutical raw materials and intermediates (especially carbohydrate derivatives Series), In recent years, the company has made a major breakthrough in food and feed additives, plant extraction, industrial chemicals industry .

The company insists on the spirit of “sincere management, strict quality control, customer as god” , get consistent high praise from customers at home and abroad.

Corporate Culture:

Help China Chemicals to benefit the happiness of human life
Become the most trusted chemical supplier in the world
Striver – oriented, enrich employees, customer first, deep service, seek development
Be prepared for danger in times of peace, forge ahead actively, unity and cooperation, and be brave to fight

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Cosmetic raw materials
  • Products/Service:Cosmetic raw materials (flavors and fragrances,antioxidant products, moisturizing and hydrating, whitening agents, cosmetic additives)
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

Get UV-9 Quotation