Photoresist Chemicals 1H-Purine-2,6-dione, 7-[3-[4-[(4-chlorophenyl)phenylmethyl]-1-piperazinyl]propyl]-3,7-dihydro- 1,3-dimethyl-, dihydrochloride Cas:81996-72-7 Molecular Formula:C27H31ClN6O2.2ClH