Sodium 2-[1-({[(1S)-1-{3-[(E)-2-(7-chloroquinolin-2-yl)ethenyl]phenyl}-3-[2-(2-hydroxypropan-2-yl)phenyl]propyl]sulfanyl}methyl)cyclopropyl]acetate

cyclopropaneaceticacid,1-[[[(1s)-1-[3-[(1e)-2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]-,monosodium salt (9ci) ; ent-montelukast sodium salt ; 1-[[[(1s)-1-[3-[(1e)-2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]cyclopropaneacetic acid sodium salt ; l 768232 ; [s-(e)]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]cyclopropaneacetic acid monosodium salt ; ent-montelukast ; cyclopropaneacetic acid,1-[[[1-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]-,monosodium salt, [s-(e)]- ; cyclopropaneaceticacid,1-[[[(1s)-1-[3-[(1e)-2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]-,sodium salt (1:1) ; montelukast ep impurity a