1-?????????,3-[4-a??-3-(4-?????)-1H-????[3,4-d]????-1-?]-,1,1-?????????,(3R)- iMatinib related substance C N-Desmethyl Imatinib IMatinib Para-diaMinoMethylbenzene Imatinib 4-(4-METHYLPIPERAZIN-1-YLMETHYL)BENZONITRILE Imatinib Impurity 72 IMatinib DiPiperidine IMpurity Imatinib impurity M Methanone, 1H-imidazol-1-yl[4-[(4-methyl-1-piperazinyl)methyl]phenyl]- Imatinib impurity 31 4-(4-Methylpiperazin-1-ylmethyl)benzoic acid Guanidine, N-(2-methyl-3-nitrophenyl)- Imatinib Impurity 7 N-DESMETHYL IMATINIB 1-(3-Pyridyl)-3-(dimethylamino)-2-propen-1-one Imatinib (Piperidine)-N-oxide 3-Acetylpyridine