Impurity Standards

Search Products:


Search by Project Name:




Montelukast EP Impurity D

Product Code:
DH/MTT/1004
Molecular Formula:
C41H46ClNO5S2
CAS Number:
1187586-61-3
Molecular Weight:
732.39
Synonyms: : 1-[[[(1R)-1-[3-[(1R)-1-[[[1-(Carboxymethyl)cyclopropyl]methyl]thio]-2-(7-chloro-2-quinolinyl)ethyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl) phenyl] propyl] thio]methyl]-cyclopropaneacetic acid, Montelukast USP RC C ; Michael Adduct (R,R)-Isomer


Montelukast EP Impurity E

Product Code:
DH/MTT/1005
Molecular Formula:
C41H46ClNO5S2
CAS Number:
1187586-58-8
Molecular Weight:
732.39
Synonyms: 1-[[[(1R)-1-[3-[(1S)-1-[[[1-(Carboxymethyl)cyclopropyl]methyl]thio]-2-(7-chloro-2-quinolinyl)ethyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl) phenyl] propyl] thio]methyl]-cyclopropaneacetic acid, Montelukast USP RC D ; Michael Adduct (R,S)-Isomer


Montelukast Ketone Impurity

Product Code:
DH/MTT/1006
Molecular Formula:
C29H26ClNO2
CAS Number:
1258428-71-5
Molecular Weight:
455.98
Synonyms: (E)-1-{3-[2-(7-Chloroquinolin-2-yl)vinyl]phenyl}-3-[2-(2-hydroxypropan-2-yl)phenyl]propan-1-one


Montelukast EP Impurity F

Product Code:
DH/MMT/1007
Molecular Formula:
C34H32ClNO3S
CAS Number:
937275-23-5
Molecular Weight:
570.14
Synonyms: [1-[[[(1R)-3-(2-acetylphenyl)-1-[3-[(E)-2-(7-chloroquinolin-2- yl)ethenyl]phenyl] propyl]sulfanyl]methyl]cyclopropyl]acetic acid Montelukast USP Related Compound E ; Montelukast Methylketone


Montelukast EP Impurity G

Product Code:
DH/MMT/1008
Molecular Formula:
C35H36ClNO3S
CAS Number:
774538-96-4
Molecular Weight:
586.18
Synonyms: [1-[[[(1R)-1-[3-[(Z)-2-(7-Chloroquinolin-2-yl)ethenyl]phenyl]-3-[2-(2-hydroxypropan-2-yl) phenyl]propyl]sulfanyl]methyl]cyclopropyl]acetic acid, Montelukast cis-Isomer ; Montelukast USP RC B


Need more Information about our Products ?