1-Phthalazinamine, N-(4-chlorophenyl)-4-(4-pyridinylmethyl)-, butanedioate (1:1) 212142-18-2 Butanedioic acid, compd. with N-(4-chlorophenyl)-4-(4-pyridinylmethyl)-1-phthalazinamine (1:1) CGP 79787D PTK 787 PTK-787 PTK787 ZK 222584