Montelukast EP Impurity A CAS 220927-27-5
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 220927-27-5 |
| Molecular Formula | C35H36ClNO3S |
| Molecular Weight | 586.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
High-purity Montelukast EP Impurity A (CAS 220927-27-5) pharmacopoeial impurity standards reference standard. Molecular formula: C35H36ClNO3S. Molecular weight: 586.18 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C35H36ClNO3S |
| Molecular Weight | 586.18 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 2020 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Montelukast Standards
- Montelukast (CAS 158966-92-8)
- Montelukast EP Impurity G (CAS 774538-96-4)
- Montelukast EP Impurity H (CAS 851755-56-1)
- Montelukast Impurity 24 (CAS CATO-C4X-103124)
- Montelukast Amide (CAS 866923-63-9)
- Montelukast Impurity 2 (CAS CATO-C4X-10312)
- Montelukast Impurity N1 (CAS 162489-70-5)
- Montelukast Impurity 21 (CAS 142147-67-9)
Recommended Standards
- (E)-3-([1,4'-bipiperidin]-1'-ylmethyl)-N-(4-chloro-2-(2-(3,4-dimethylbenzylidene)hydrazine-1-carbonyl)phenyl)benzamide (CAS 773063-99-3)
- Ceritinib Impurity 66 (CAS CATO-C4X-104866)
- 2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11-Icosafluoroundecyl acrylate (CAS 4998-38-3)
- Salcaprozate Impurity 8 (CAS CATO-C4X-25078)
- Ceritinib Impurity 65 (CAS CATO-C4X-104865)
- 4-Butoxybutanol (CAS 4161-24-4)
- 3-Chloro-6-nitro-1H-indazole (CAS 50593-68-5)
- 3-(4-Aminophenyl)-1H-pyridin-2-one (CAS 1352318-68-3)
- Tert-butyl 2-(4-(methylamino)-4-oxobutan-2-yl)hydrazine-1-carboxylate (CAS 1781241-44-8)
- Neuropeptide Y (3-36) (porcine) trifluoroacetate salt (CAS 143863-88-1)
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