Imatinib EP Impurity - D

Des(methylpiperazinyl) Imatinib Dimer Piperazinium Chloride; 1-Methyl-1,4-bis[4-[(4-methyl-3-[[4-(pyridin-3-yl)pyrimidin-2-yl]amino]phenyl)carbamoyl]benzyl]piperazin-1-ium Chloride;