Benzophenone-3 (Oxybenzone)


  1. Basic Information
Product name Benzophenone-3; BP-3; UV-9; Oxybenzone
CAS No. 131-57-7
EINECS No.  205-031-5
Molecular Formula: C13H10O5
Molecular Weight: 246.0
Molecular Structure:


  1. Technical Specification


Item        Specification
Appearance Light yellow crystal
Assay ≥ 99.0%
Melting point 62-64℃
Loss on drying 0.5% max
Lovibond color ≤3.0
Heavy metal ≤5ppm
Specific Extinction 285nm:630min




  1. Application field

Benzophenone-3, Oxybenzone, is a UV-A/B filter. It is an oil soluble powder for broad spectrum protection of approximately 1.5 SPF units/percent. Benzophenone-3 (2-hydroxy-4-methoxybenzophenone; BP-3) is widely used as sunscreen for protection of human skin and hair from damage by ultraviolet (UV) radiation

Benzophenone-3 finds application in formulating sun-, baby- & daily skin care products and decorative cosmetics with sun protection. Benzophenone-3 is also added to packaging and some consumer products, such as cosmetics and paints, to protect the products from sun damage.

Benzophenone-1, -3, -4, -5, -9 and-11 are compounds made from 2-hydroxybenzophenone. These compounds are powders. In cosmetics and personal care products, Benzophenone-1 and Benzophenone-3 are used mostly in the formulation of nail polishes and enamels. These Benzophenone ingredients are also used in bath products, makeup products, hair products, sunscreens and skin care products.

Benzophenone-1, Benzophenone-3, Benzophenone-4, Benzophenone-5, Benzophenone-9 and Benzophenone-11 protect cosmetics and personal care products from deterioration by absorbing, reflecting, or scattering UV rays. When used as sunscreen ingredients, Benzophenone-3 and Benzophenone-4 protect the skin from UV rays.

The Food and Drug Administration (FDA) has approved the use of Benzophenone-3 and Benzophenone-4 as safe and effective, over-the-counter (OTC) sunscreen ingredients. When used as a sunscreen ingredient in the United States, Benzophenone-3 is called Oxybenzone, and may be used at concentrations up to 6%, and Benzophenone-4 is called Sulisobenzone, and may be used at concentrations up to 10%. Benzophenone ingredients absorb and dissipate UV radiation, which serves to protect cosmetics and personal care products. As part of sunscreen products, which are OTC drugs in the United States, Benzophenone-3 (Oxybenzone) and Benzophenone-4 (Sulisobenzone) protect the skin from the harmful effects of the sun. Exposing unprotected skin to UV light (primarily in the UV-B range) can result in sunburn and can promote premature aging of the skin and skin cancer.


  1. Packing

Benzophenone-3 Standard packaging includes the following:

25kg per drum

Other package sizes are available upon request.


  1. Storage

Benzophenone-3 shall be store in a well-ventilated, cool, dry area, out of direct sunlight. Keep containers tightly closed when not in use.


  1. Period of validity

24 months