ga9 - Robuta Search

https://webbook.nist.gov/cgi/inchi/InChI%3D1S/C20H26O4/c1-11-9-19-10-12(11)5-6-13(19)20-8-4-7-18(2%2C17(22)24-20)15(20)14(19)16(21)23-3/h12-15H%2C1%2C4-10H2%2C2-3H3/t12%3F%2C13-%2C14-%2C15-%2C18-%2C19%2B%2C20-/m0/s1 GA9, Me-TMS tms