Verapamil Impurity 49 CAS CATO-C4X-177849
| CAS No. | CATO-C4X-177849 |
| Molecular Formula | C14H21NO2 |
| Molecular Weight | 235.32 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Verapamil Impurity 49 (CAS CATO-C4X-177849) is a certified pharmaceutical impurity reference standard with the molecular formula C14H21NO2 and a molecular weight of 235.32 g/mol.
Structurally, Verapamil Impurity 49 (C14H21NO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 235.32 g/mol, it falls into the medium-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.
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 | C14H21NO2 |
| Molecular Weight | 235.32 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 95% |
| Storage | Store at 2-8°C, 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Verapamil Standards
- Verapamil Impurity 52 (CAS CATO-C4X-177852)
- Verapamil EP Impurity K (CAS 20850-49-1)
- Verapamil Impurity 51 (CAS CATO-C4X-177851)
- Verapamil Impurity 19 (CAS CATO-C4X-177819)
- Verapamil EP Impurity C (CAS 3490-05-9)
- Verapamil EP Impurity L (CAS 14046-55-0)
- Verapamil Impurity 17 (CAS CATO-C4X-177817)
- Verapamil EP Impurity D (CAS 36770-74-8)
Recommended Standards
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- Indobufen Impurity 69 (CAS CATO-C4X-179269)
- Uridine Impurity 12 (CAS 146426-20-2)
- Macitentan Impurity 50 (CAS 2253990-09-7)
- Budesonide Impurity 51 (CAS CATO-C4X-138951)
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- N'-((1H-Indol-3-yl)methylene)thiophene-2-carbohydrazide (CAS 113143-13-8)
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