Photoresist Chemicals Urea, N-(3-chlorophenyl)-N’-[5-[2-[[2-[3-(methylsulfonyl)propyl]-2H-pyrazolo[4, 3-d]pyrimidin-7-yl]amino]ethyl]-2-thiazolyl]- Cas：923283-14-1 Molecular Formula：C21H23ClN8O3S2