Montelukast Sodium CAS 151767-02-1
| CAS No. | 151767-02-1 |
| Molecular Formula | C35H35ClNO3S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 608.17 g/mol gives Montelukast Sodium distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Montelukast Sodium (CAS 151767-02-1), molecular formula C35H35ClNO3SNa and molecular weight 608.17 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Montelukast Sodium (C35H35ClNO3SNa) contains a salt form, 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 18.5, corresponding to approximately 18 ring(s) or double-bond equivalent(s). With a molecular weight of 608.17 g/mol, it falls into the high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C35H35ClNO3S Na |
| Molecular Weight | 608.17 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) | 18.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Montelukast Standards
- Montelukast Impurity 50 (CAS 1044705-96-5)
- Montelukast Impurity 47 (CAS 1079753-36-8)
- Montelukast-d6 (CAS 1093746-29-2)
- Montelukast Impurity 56 (CAS 1100617-38-6)
- Montelukast Impurity 44 (CAS 115104-40-0)
- Montelukast R-Sulfoxide (CAS 1152185-58-4)
- Montelukast EP Impurity E (CAS 1187586-58-8)
- Montelukast EP Impurity D (CAS 1187586-61-3)
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- Rocuronium Bromide EP Impurity D (CAS 1190105-63-5)
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- 7-(Methoxymethyl)-2-methyl-4,5,6,7-tetrahydro-2H-pyrazolo[4,3-c]pyridine (CAS 1422136-15-9)
- Imatinib Impurity 48 (CAS 1131605-15-6)
- Liraglutide(14-22)TFA Salt (CAS CATO-C4X-199212)
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