Photoresist Chemicals 1H-Purine-2,6-dione, 8-chloro-3,9-dihydro-1-[3-[5-(phenylmethyl)-1,2,4-oxadiazol-3-yl]propyl]- 3-propyl- Cas：925248-16-4 Molecular Formula：C20H21ClN6O3