Natural avobenzone raw Materials Powder

CAS:70356-09-1

MF:C20H22O3

MW:310.39

EINECS:274-581-6

Specification​: 99% min avobenzone Powder

Sample:avobenzone Powder

Packaging:1kg/bag, 25kg/drum

Brand: Henrikang

Appearance:white

Storage: Cool Dry Place

Shelf Life: 2 Years

Test Method: HPLC

avobenzone Powder Usage and Synthesis.

Avobezone is A synthetic UV absorber, is a good UV-A(> 320nm) type UV absorber, can block the full band (320 ~ 400nm) UVA, is an efficient broad-spectrum oil-soluble UVA filter, combined with other UVB sunscreen, Provides full UVA and UVB protection against photogenic skin cancer.

Uses of avobenzone.

An oil-soluble sunscreen. It is classified as a "chemical" sunscreen because it works by absorbing wider wavelengths of UV rays and converting them into less harmful infrared radiation (thermal energy). It is marketed as a "broad spectrum" sunscreen because it protects against the full spectrum of UVA rays. It is one of the few sunscreens with a wide range of UV protection, so it is widely used in sunscreen products. It is also used in cosmetics to prevent other ingredients from spoiling in the sun.

Synthesis method of avobenzone.

At present, the main methods of synthesis of Avobenzone are: (1) condensation addition and water elimination method, that is, p-methoxyacetophenone and p-tert-butylbenzaldehyde through condensation, bromine addition, elimination into acetylene, hydration to obtain products, the yield is 58%, the method has a long route, high cost, low yield; (2) Claisen ester reduction method, that is, p-methoxyacetophenone and p-tert-butylbenzoate reaction, the yield is 63.6%, this method is low cost, easy to operate, but the yield is low; ③ Aldehyde-ketone condensation method, that is, condensation of p-methoxyacetophenone and p-tert-butylbenzaldehyde into alcohol, oxidation, the yield is 34.6%, the method is easy to operate, high cost, low yield.

Product Method of Bulk avobenzone Powder.