Urapidil Impurity 67 CAS CATO-C4X-192467
| CAS No. | CATO-C4X-192467 |
| Molecular Formula | C11H17ClN2O |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 265.18 g/mol gives Urapidil Impurity 67 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Urapidil Impurity 67 (CAS CATO-C4X-192467, C11H17ClN2OHCl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Urapidil Impurity 67 (C11H17ClN2OHCl) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
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 | C11H17ClN2O 2*HCl |
| Molecular Weight | 265.18 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Urapidil Standards
- Urapidil Impurity 76 HBr (CAS 100939-96-6)
- Urapidil Impurity 61 HCl (CAS 1081534-21-5)
- Urapidil Impurity 9 (CAS 108997-11-1)
- Urapidil Impurity 70 (CAS 112735-05-4)
- Urapidil Impurity 75 (CAS 116315-12-9)
- Urapidil Impurity 69 (CAS 117525-95-8)
- Urapidil Impurity 54 (CAS 13300-33-9)
- Urapidil Impurity 88 (CAS 13379-99-2)
Recommended Standards
- Cinacalcet Impurity 65 (CAS 1860814-97-6)
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- 2-Chloro-11-cyclopentyl-5-methyl-5H-benzo[e]pyrimido[5,4-b][1,4]diazepin-6(11H)-one (CAS 1521197-46-5)
- (3-Methylpiperidin-1-yl)(1H-pyrazol-4-yl)methanone (CAS 1154383-25-1)
- 3-(Chloromethyl)quinazolin-4(3H)-one (CAS 99067-49-9)
- 4-[5-(3-methylphenyl)-1,3,4-oxadiazol-2-yl]benzoic acid (CAS 949393-13-9)
- (S)-2-((S)-2-(((Benzyloxy)carbonyl)amino)-3-(1H-imidazol-4-yl)propanamido)-3-(4-hydroxyphenyl)propanoic acid (CAS 17257-63-5)
- Ethyl 3-Amino-3-(3-chlorophenyl)propanoate Hydrochloride (CAS 188815-45-4)
- Semaglutide impurity 32 (CAS CATO-C4X-222632)
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