Photoresist Chemicals 3(2H)-Pyridazinone,6-(3,4-dimethoxyphenyl)-4,5-dihydro-5-methyl-2-[1-(3-pyridinylmethyl)-4-piperidinyl]-, dihydrochloride Cas：666750-61-4 Molecular Formula：C24H30N4O3.2ClH