Montelukast Impurity C167 CAS 866923-62-8
Purity ≥95%In StockPharmacopoeial Impurity Standards
| CAS No. | 866923-62-8 |
| Molecular Formula | C35H35ClN2OS |
| Molecular Weight | 567.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Montelukast Impurity C167 (CAS 866923-62-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C35H35ClN2OS. Molecular weight: 567.18 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C35H35ClN2OS |
| Molecular Weight | 567.18 g/mol |
| Purity | ≥95% |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- Felodipine (CAS 72509-76-3)
- 3-{[(4-bromophenyl)methyl]sulfanyl}-5-({[(4-chlorophenyl)methyl]sulfanyl}methyl)-4-ethyl-4H-1,2,4-triazole (CAS 344268-63-9)
- 1-(Bromomethyl)-4-(4-methylphenoxy)benzene (CAS 78805-82-0)
- Semaglutide impurity 95 (CAS CATO-C4X-222695)
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