Photoresist Chemicals 2,5-Pyrrolidinedione, 1-[3-[4-[5-fluoro-2-(1-methylethoxy)phenyl]-1-piperazinyl]propyl]-3-[(meth ylamino)methyl]-, hydrochloride Cas:850783-47-0 Molecular Formula:C22H33FN4O3.xClH