CAS: 142147-98-6 Molecular Formula: C35 H38 Cl N O3 S . Na Molecular Weight (g/mol): 610.18 Synonym: Cyclopropaneacetic acid, 1-[[[1-[3-[2-(7-chloro-2-quinolinyl)ethyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]-, monosodium salt, (R)-,Dihydro Montelukast Sodium Salt IUPAC Name: sodium;2-[1-[[(1R)-1-[3-[2-(7-chloroquinolin-2-yl)ethyl]phenyl]-3-[2-(2-hydroxypropan-2-yl)phenyl]propyl]sulfanylmethyl]cyclopropyl]acetate SMILES: [Na+].CC(C)(O)c1ccccc1CC[C@@H](SCC2(CC(=O)[O-])CC2)c3cccc(CCc4ccc5ccc(Cl)cc5n4)c3