Montelukast EP Impurity B
[CAS# 1146137-52-1]

Identification

• Name: Montelukast EP Impurity B
• Synonyms: [1-[[[(1R)-1-[3-[(E)-2-(7-Chloroquinolin-2-yl)ethenyl]phenyl]-3-[2-(1-methylethenyl)phenyl]propyl]sulfanyl]methyl]cyclopropyl]acetic acid (as per EP); [1-[[[(1R)-1-[3-[(E)-2-(7-Chloroquinolin-2-yl)ethenyl]phenyl]-3-[2-(1-methylethenyl)phenyl]propyl]sulfanyl]methyl]cyclopropyl]acetic acid (as per USP)
• Molecular Formula: C₃₅H₃₄ClNO₂S
• Molecular Weight: 568.17
• CAS Registry Number: 1146137-52-1
• SMILES: C=C(C1=CC=CC=C1CC[C@@H](SCC2(CC2)CC(O)=O)C3=CC=CC(/C=C/C4=NC5=CC(Cl)=CC=C5C=C4)=C3)C