Photoresist Chemicals Poly(oxy-1,2-ethanediyl),a,a’-[(1-methylethylidene)di-4,1-cyclohexanediyl]bis[w-[(1-oxo-2-propen-1-yl)oxy]- Cas:77866-18-3 Molecular Formula:(C2H4 O)n (C2 H4 O)n C21 H32 O4