1) Sunscreening agent 
Avobenzone (trade names Parsol 1789, Eusolex 9020, Escalol 517 and others, INCI Butyl Methoxydibenzoylmethane) is an oil soluble ingredient used in sunscreen products to absorb the full spectrum of UVA rays. It is a dibenzoylmethane derivative. Avobenzone exists in the ground state as a mixture of the enol and keto forms, favoring the chelated eno...
(av″o-ben´zōn) a sunscreen that absorbs light in the UVA range.
Avobenzone is a sunscreen ingredient that protects against ultraviolet A (UVA) rays.
A chemical found in sunscreens, it absorbs UVA rays to reduce their penetration into the skin, but does not protect against UVB rays.
Used in sunscreen to absorb the full spectrum of UVA rays.