Labetalol Impurity 71 CAS CATO-C4X-246671
| CAS No. | CATO-C4X-246671 |
| Molecular Formula | C10H13NO4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Labetalol Impurity 71 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.
As a process- or degradation-related impurity, Labetalol Impurity 71 (CAS CATO-C4X-246671, C10H13NO4HCl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Labetalol Impurity 71 (C10H13NO4HCl) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 247.67 g/mol, it falls into the medium-molecular-weight range. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C10H13NO4 HCl |
| Molecular Weight | 247.67 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Labetalol Standards
- Labetalol Impurity 29 (CAS 119021-71-5)
- Labetalol EP Impurity A (CAS 1391051-99-2)
- Labetalol Impurity 9 (CAS 22374-89-6)
- Labetalol EP Impurity C HCl (CAS 2386661-13-6)
- Labetalol-d5 HCl (CAS 2713514-78-2)
- Labetalol Impurity 23 (CAS 2724509-52-6)
- Labetalol Impurity 56 (CAS 2731858-23-2)
- Labetalol EP Impurity D HCl (CAS 32780-65-7)
Recommended Standards
- Efinaconazole impurity 53 (CAS CATO-C4X-124353)
- Cefixime Impurity 68 (CAS CATO-C4X-113968)
- Ozanimod Impurity 21 (CAS 1201447-05-3)
- 4-((Neopentyloxy)methyl)piperidine (CAS 883544-58-9)
- (2,3-Diaminophenyl)methanol (CAS 273749-25-0)
- Methyl (E)-5-(2-(4-((4-chlorophenyl)thio)-3-(2,6-dichlorophenyl)isoxazolo[4,5-c]pyridin-7-yl)vinyl)-3-(2,6-dichlorophenyl)isoxazole-4-carboxylate (CAS 338773-22-1)
- (3-Methylquinolin-2-yl)methanamine (CAS 1027763-54-7)
- 1-(4-Methoxyphenyl)-2-(p-tolyl)ethane-1,2-dione (CAS 33425-19-3)
- Levetiracetam (CAS 102767-28-2)
- D-[Phe]6-Liraglutide (CAS CATO-C4X-199235)
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