Robuta

https://webbook.nist.gov/cgi/inchi/InChI%3D1S/C20H21FO4/c1-2-3-13-24-19(22)16-6-8-17(9-7-16)20(23)25-14-12-15-4-10-18(21)11-5-15/h4-11H%2C2-3%2C12-14H2%2C1H3 Terephthalic acid, butyl 4-fluorophenethyl ester terephthalic acidbutylester