
Montelukast Methoxymethoxy Impurity ;
1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-[1-hydroxy-2-(methoxymethoxy)-1-methylethyl]phenyl]propyl]thio]methyl]cyclo propaneacetic acid ;
CAS # 184764-27-0 ;
C37H40ClNO5S ;
MW: 646.24 ;