Urapidil Impurity 40 CAS 6328-48-9
| CAS No. | 6328-48-9 |
| Molecular Formula | C10H11NO |
| Molecular Weight | 161.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Urapidil Impurity 40 (C10H11NO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO supplies Urapidil Impurity 40 (CAS 6328-48-9), a pharmacopoeial impurity reference standard (molecular formula C10H11NO, MW 161.20 g/mol) used for the identification and quantification of trace impurities in APIs.
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 | C10H11NO |
| Molecular Weight | 161.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
Related Urapidil Standards
- Urapidil Impurity 27 (CAS 31737-09-4)
- Urapidil Impurity N62 (CAS 41949-07-9)
- Urapidil Impurity 108 (CAS CATO-C4X-1924108)
- Urapidil Impurity 6 (CAS 769-42-6)
- Urapidil Impurity 25 (CAS 63959-47-7)
- Urapidil Impurity 33 (CAS 39615-79-7)
- Urapidil Impurity 63 (CAS CATO-C4X-192463)
- Urapidil Impurity N26 (CAS 5770-42-3)
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- 4-Chloro-N-hydroxybenzimidoyl chloride (CAS 28123-63-9)
- Urbacid (CAS 2445-07-0)
- (9-D-Asp) Semaglutide X Sodium salt (CAS CATO-CPTD788617)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com