Photoresist Chemicals Urea,1,1′-nonamethylenebis[3-[p-(4-methyl-2-imidazolin-2-yl)phenyl]-,dihydrochloride (8CI),cas:5969-30-2 Cas:5969-30-2 Molecular Formula:C31H44 N8 O2 . 2 Cl H