Montelukast Impurity 22 CAS 1266620-74-9
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 1266620-74-9 |
| Molecular Formula | C35H36ClNO5S |
| Molecular Weight | 618.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Montelukast Impurity 22 (CAS 1266620-74-9) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C35H36ClNO5S. Molecular weight: 618.18 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C35H36ClNO5S |
| Molecular Weight | 618.18 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Montelukast Standards
- Montelukast Sulfone (CAS 2714018-24-1)
- Montelukast Impurity 9 (CAS CATO-C4X-10319)
- Montelukast Acid Impurity Disodium Salt (CAS 213380-27-9)
- Montelukast Impurity 50 (CAS 1044705-96-5)
- Montelukast Impurity 8 (CAS CATO-C4X-10318)
- Montelukast Sodium EP Impurity G (CAS 1428448-96-7)
- cis-Montelukast Sulfoxide (CAS 1428511-42-5)
- Montelukast R-Sulfoxide (CAS 1152185-58-4)
Recommended Standards
- Dimethyl Perfluoro-1,10-decanedicarboxylate (CAS 84750-88-9)
- 2-(Perfluorodecyl)ethyl Acrylate (CAS 17741-60-5)
- (S)-Methyl (1-((4-(3-(5-chloro-2-fluoro-3-(N-(methylsulfonyl)methylsulfonamido)phenyl)-1-isopropyl-1H-pyrazol-4-yl)pyrimidin-2-yl)amino)propan-2-yl)carbamate (CAS 1269440-99-4)
- Gadoxetate Impurity 33 (CAS CATO-C4X-261833)
- Empagliflozin impurity 317 (CAS CATO-C4X-1065317)
- 1-[4-[4-(2,4-Di-tert-pentylphenoxy)butyramido]phenyl]3-pyrrolidino-4-(1-phenyltetrazol-5-yl)thiopyrazolin-5-one (CAS 107047-27-8)
- 1-Cyclohexyl-3-methyl-1H-pyrazol-5-ol (CAS 69121-55-7)
- 2-Amino-3-(4-chloro-2-nitrophenyl)propanoic acid (CAS 56433-05-7)
- 2,6-Bis(benzyloxy)benzonitrile (CAS 94088-47-8)
- Semaglutide impurity 51 (CAS CATO-C4X-222651)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com