Photoresist Chemicals Isocyanic acid, polymethylenepolyphenylene ester, polymer with 1,3-diisocyanatomethylbenzene, alpha-hydro-omega-hydroxypoly(oxy(methyl-1,2-ethanediyl)) and 1,1-(phenylimino)bis(2-propanol) Cas:68240-16-4 Molecular Formula:Isocyanic acid, polymethylenepolyphenylene ester, polymer with 1,3-diisocyanatomethylbenzene, alpha-hydro-omega-hydroxypoly(oxy(methyl-1,2-ethanediyl)) and 1,1-(phenylimino)bis(2-propanol)