Montelukast Impurity 24 CAS CATO-C4X-103124
| CAS No. | CATO-C4X-103124 |
| Molecular Formula | C34H32ClNO4S |
| Molecular Weight | 586.14 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Montelukast Impurity 24 (CAS CATO-C4X-103124) is a certified pharmaceutical impurity reference standard with the molecular formula C34H32ClNO4S and a molecular weight of 586.14 g/mol.
Structurally, Montelukast Impurity 24 (C34H32ClNO4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 19.0, corresponding to approximately 19 ring(s) or double-bond equivalent(s). With a molecular weight of 586.14 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C34H32ClNO4S |
| Molecular Weight | 586.14 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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Montelukast Standards
- Montelukast EP Impurity H (CAS 851755-56-1)
- Montelukast (CAS 158966-92-8)
- Montelukast EP Impurity A (CAS 220927-27-5)
- Montelukast EP Impurity G (CAS 774538-96-4)
- 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)
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