Robuta

https://webbook.nist.gov/cgi/inchi/InChI%3D1S/C14H24O4Si2/c1-16-12-9-8-11(14(15)18-20(5%2C6)7)10-13(12)17-19(2%2C3)4/h8-10H%2C1-7H3 Isovanillic acid, 2TMS derivative acidderivative