Photoresist Chemicals Urea, N-[4-[1-butyl-6-[3-(diethylamino)propoxy]-1H-benzimidazol-2-yl]-2-[2-(4- chlorophenyl)ethoxy]phenyl]-N’-(1-methylethyl)- Cas：603145-31-9 Molecular Formula：C36H48ClN5O3