Alfuzosin EP Impurity A HCl CAS 98902-29-5
| CAS No. | 98902-29-5 |
| Molecular Formula | C19H23N5O4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Alfuzosin EP Impurity A HCl.
Alfuzosin EP Impurity A HCl (CAS 98902-29-5) is a certified pharmaceutical impurity reference standard with the molecular formula C19H23N5O4HCl and a molecular weight of 421.88 g/mol.
Based on its molecular formula C19H23N5O4HCl, Alfuzosin EP Impurity A HCl contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 421.88 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Alfuzosin EP Impurity A HCl meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C19H23N5O4 HCl |
| Molecular Weight | 421.88 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Alfuzosin Standards
- Alfuzosin-d (CAS 1006717-24-3)
- Alfuzosin-D6 (CAS 1006717-31-2)
- Alfuzosin EP Impurity E (CAS 1026411-59-5)
- Alfuzosin-d3 Hydrochloride (CAS 1216383-97-9)
- (±)-Alfuzosin D7 Hydrochloride (CAS 1276197-14-8)
- Alfuzosin EP Impurity B Hydrochloride (CAS 132900-51-7)
- Alfuzosin-d7 (CAS 1346746-88-0)
- Alfuzosin EP Impurity E HCl (CAS 1796934-51-4)
Recommended Standards
- Pimavanserin Impurity 17 (CAS CATO-C4X-193817)
- Fluticasone Impurity 64 (CAS CATO-C4X-165064)
- Alendronic Acid impurity 8 (CAS 165043-19-6)
- Empagliflozin Impurity 277 (CAS CATO-C4X-1065277)
- 7-Methoxyisoquinolin-8-amine (CAS 55766-74-0)
- 4-Ethyl-2H-1,2,4-benzothiadiazin-3(4H)-on-1,1-dioxide (CAS 102308-74-7)
- 1-(4-Chlorophenyl)-4-oxocyclohexane-1-carbonitrile (CAS 25115-75-7)
- 2-((1-Cyclopentyl-1h-tetrazol-5-yl)thio)propanamide (CAS 1247214-98-7)
- 6-(1,3-Dioxolan-2-yl)-2-fluorobenzofuran (CAS 648915-97-3)
- Semaglutide impurity 98 (CAS CATO-C4X-222698)
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