Photoresist Chemicals 1-Piperidinecarboxylic acid, 4-[(5-thieno[3,2-c]pyridin-2-yl-1,2,4-oxadiazol-3-yl)methoxy]-, 1,1-dimethylethyl ester Cas:895125-30-1 Molecular Formula:C20H24N4O4S