Photoresist Chemicals 1,3,4-Oxadiazole, 2-(2-benzofuranyl)-5-[2-[4-[5-(2-benzofuranyl)-1,3,4-oxadiazol-2-yl]phen yl]ethenyl]- Cas：61256-22-2 Molecular Formula：C28H16N4O4