
| 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

| 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

| 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

| 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

| 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