Chemical Name: Ethyl 1-(4-methoxyphenyl)-7amorpholin-4-yl-7-oxo6-[4-(2-oxopiperidin1-yl)phenyl]-4,5-dihydro-3aHpyrazolo[3,4-c]pyridine-3-carboxylate
Synonym: Montelukast Methoxymethoxy Impurity
Smile: O=C(C1=NN(C2=CC=C(OC)C=C2)C(C1CCN3C4=CC=C(N5C(CCCC5)=O)C=C4)(N6CCOCC6)C3=O)OCC