Chemical Name: Des(methylpiperazinyl-N-methyl) Imatinib Dimer Impurity; 1,4-Bis-[4-[4-methyl-3-[[4-(pyridin-3-yl)pyrimidin-2-yl]amino]phenyl]carbamoyl]benzylpiperazine;
Synonym: Oxybutynin USP RC C ; 4-(ethylmethylamino)but-2-ynyl (RS)-2-cyclohexyl-2-hydroxy-2-phenylacetate (methylethyl analogue of oxybutynin),
Smile: CC1=CC=C(NC(C2=CC=C(CN3CCN(CC4=CC=C(C(NC5=CC=C(C)C(NC6=NC=CC(C7=CN=CC=C7)=N6)=C5)=O)C=C4)CC3)C=C2)=O)C=C1NC8=NC=CC(C9=CC=CN=C9)=N8