Wiktionary
cinoxate
n. (context organic compound English) An ester formed from methoxycinnamic acid and 2-ethoxyethanol, and used in some sunscreens.
Wikipedia
Cinoxate
Cinoxate is an organic compound used as an ingredient in some types of sunscreens. It is an ester formed from methoxycinnamic acid and 2-ethoxyethanol. It is a slightly yellow viscous liquid that is insoluble in water, but miscible with alcohols, esters, and vegetable oils.
It protects skin against the sun by absorbing UV-A and UV-B rays.