1. Basic Information
Product name Avobenzone
INCI name Butyl methoxydibenzoyl methane
CAS No. 70356-09-1
EINECS No. 274-581-6
Molecular Formula: C20H22O3
Molecular Weight: 310.3869
Structural Formula:


  1. Technical Specification
Item Specification
Appearance White or pale yellow crystalline powder





A: Infrared Absorption 197K
B: Ultraviolet Absorption 197U

Absorptivities at 360nm do not differ by more than 3.0%

Loss on drying 0.5% max
Assay (GC) 95.0~105.0%

Impurity (GC)


Individual impurity: 3.0% max
Total impurity: 4.5% max
Residual solvents Methanol: 3000ppm max



  1. Application field

Avobenzone, butyl methoxydibenzoyl methane, belongs to the benzophenone ultraviolet absorber, and it is also a very important organic synthesis intermediate.

Avobezone, Butyl methoxydibenzoyl methane, is a synthetic ultraviolet absorber. It is a good UV-A (>320nm) type ultraviolet absorber, which can block the full band (320~400nm) of UVA and is an efficient and broad spectrum. Oil-soluble UVA filter, compounded with other UVB sunscreens, can provide all UVA and UVB protection, used to prevent photo-induced skin cancer.

Avobenzone, butyl methoxydibenzoyl methane, also known as Parsol 1789, is a highly effective broad-spectrum oil-soluble UVA filter. Long-term use can effectively reduce wrinkles, stains, rough skin and other problems, and can prevent skin cancer. It is mainly used in cosmetics sunscreen, sunscreen and other products, and can also be used as a stabilizer to prevent photolysis of cosmetics and perfume.

Avobenzone, butyl methoxydibenzoyl methane, is a sunscreen blocker. Avobenzone is a topical, broad range UV protector and blocks UVA I, UVA II, and UVB wavelengths, thereby limiting the impact of UV rays on skin.

Avobenzone, butyl methoxydibenzoyl methane, acts as a sunscreen and UV filter. It offers broad spectrum protection against UV radiation. It is used as a photo-antioxidant to protect products from photo-oxidation.

Avobenzone, butyl methoxydibenzoyl methane, finds application in formulating hair care preparations, make up, creams, lotions, hand cream, face cream, moisturizing creams, anti-aging preparations and suncare products.

Recommended applications are as follows:

Decorative cosmetics/Make-up

Hair care (Shampoos, Conditioners & Styling)

Skin care (Facial care, Facial cleansing, Body care, Baby care) > Body care > Hand creams & Lotions

Skin care (Facial care, Facial cleansing, Body care, Baby care) > Facial care > Anti-Ageing preparations

Skin care (Facial care, Facial cleansing, Body care, Baby care) > Facial care > Moisturizing products (creams & lotions)

Sun care (Sun protection, After-sun & Self-tanning)


  1. Packing

Avobenzone, butyl methoxydibenzoyl methane,Standard packaging includes the following:

25kg per drum, Other package sizes are available upon request.


  1. Storage

Avobenzone, butyl methoxydibenzoyl methane, 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