Montelukast Impurity 43 CAS 2365398-67-8
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 2365398-67-8 |
| Molecular Formula | C34H36ClNOS |
| Molecular Weight | 542.17 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Montelukast Impurity 43 (CAS 2365398-67-8) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C34H36ClNOS. Molecular weight: 542.17 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C34H36ClNOS |
| Molecular Weight | 542.17 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Montelukast Standards
- Montelukast Impurity 44 (CAS 2365398-66-7)
- Montelukast Impurity 12 (CAS 807638-71-7)
- Montelukast Impurity 58 (CAS CATO-C4X-103158)
- Montelukast Impurity C167 (CAS 866923-62-8)
- Montelukast EP Impurity B (CAS 918972-54-0)
- Montelukast EP Impurity F (CAS 937275-23-5)
- Montelukast Impurity 4 (CAS 1772578-77-4)
- Montelukast Impurity 2 (CAS CATO-C4X-10312)
Recommended Standards
- Ceritinib Impurity 11 (CAS CATO-C4X-104811)
- 2-(Ethylthio)ethyl 4-(4-chlorophenyl)-7-(3,4-dimethoxyphenyl)-2-methyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate (CAS 332928-91-3)
- 2,2'-Dibromobianthrone (CAS 34316-54-6)
- Upadacitinib Impurity 125 (CAS CATO-C4X-2405125)
- Citalopram EP Impurity F HBr (CAS 479065-02-6)
- Ethyl (S)-5-(2-(hydroxymethyl)azetidin-1-yl)pentanoate (CAS 2886012-77-5)
- N-Methyl-d (CAS 1246820-22-3)
- 2-Bromooxazole-4-carbaldehyde (CAS 1092351-90-0)
- 2-(2-Chlorophenyl)-1-(4-iodophenyl)ethan-1-one (CAS 187617-06-7)
- FLAG Epitope Peptide (CAS 98849-88-8)
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