Octinoxate is a chemical compound the ester of 2-ethylhexyl alcohol and methoxycinnamic acid.

Chemical name 2-ethylhexyl (E)-3-(4-methoxyphenyl)prop-2-enoate

Molecular Formula C18H26O3

Safety
It is a widely used ingredient in sunscreens. Since 2003, many studies have reported patients with photocontact allergy.
Schneider SL, Lim HW. A review of inorganic UV filters zinc oxide and titanium dioxide. Photodermatol Photoimmunol Photomed. 2019 Nov;35(6):442-446. doi: 10.1111/phpp.12439.


What it is used for and where
Cosmetics
Light stabilizer. It prevents light from degrading light-sensitive components and slows down degradation reactions that have already begun. The mechanism is, in a way, similar to antioxidants and the effectiveness depends on the.complexity of the formulation and the density of the product.

UV absorber. It acts by intercepting ultraviolet light before it can cause damage by reducing its energy through dissipation and returning it to a lower energy state.

UV filter. It is the defining ingredient in sun creams that can mitigate the sun's ultraviolet (UV) radiation, which is a high risk factor for the development of skin cancer, erythema and photo-ageing.
Synonyms: EC number 226-775-7
UNII 4Y5P7MUD51
DTXSID1025302
DTXSID9047205
dioxybenzone
Trade name:Parsol MOX
Escalol 557
Parsol
Sunscreen AV
Uvinul MC80
Uvinul MC 80
octylmethoxycinnamate

CAS: 5466-77-3