Photoresist Chemicals 1H-Purine-2,6-dione, 7-(2-butynyl)-3-cyclobutyl-3,7-dihydro-1-methyl-8-(1-piperazinyl)-, mono(trifluoroacetate) Cas：586405-43-8 Molecular Formula：C18H24N6O2.C2HF3O2