Photoresist Chemicals 1,6-Naphthyridine, 5,6,7,8-tetrahydro-6-[2-(4-phenyl-1-piperazinyl)ethyl]-, (2E)-2-butenedioate (1:2) Cas：95410-22-3 Molecular Formula：C20H26N4.2C4H4O4