Photoresist Chemicals Benzoic acid, 4-[4-[[3-methyl-4-[(6-methyl-3-pyridinyl)oxy]phenyl]amino]-5H-pyrrolo[3,2 -d]pyrimidin-6-yl]-, monohydrochloride Cas:871025-10-4 Molecular Formula:C26H21N5O3.ClH