Robuta

https://webbook.nist.gov/cgi/inchi/InChI%3D1S/C15H14O3S/c1-17-12-7-9-13(10-8-12)18-15(16)11-19-14-5-3-2-4-6-14/h2-10H%2C11H2%2C1H3 Phenylthioacetic acid, 4-methoxyphenyl ester acidester https://webbook.nist.gov/cgi/inchi?ID=U307779&Mask=2000 Phenylthioacetic acid, 4-nitrophenyl ester acidester