Levocetirizine Impurity 53 CAS CATO-C4X-108353
| CAS No. | CATO-C4X-108353 |
| Molecular Formula | C21H24Cl2N2O2 |
| Molecular Weight | 407.33 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C21H24Cl2N2O2, Levocetirizine Impurity 53 contains a steroid 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 407.33 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a process- or degradation-related impurity, Levocetirizine Impurity 53 (CAS CATO-C4X-108353, C21H24Cl2N2O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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), Levocetirizine Impurity 53 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 | C21H24Cl2N2O2 |
| Molecular Weight | 407.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Levocetirizine Standards
- Levocetirizine Impurity 44 (CAS 442863-80-1)
- Levocetirizine Impurity 70 (CAS CATO-C4X-108370)
- Levocetirizine Impurity 42 (CAS CATO-C4X-108342)
- Levocetirizine Impurity 8 (CAS 83881-46-3)
- Levocetirizine Impurity 11 (CAS 246870-46-2)
- Levocetirizine Impurity 43 (CAS 1116338-10-3)
- Levocetirizine Impurity 69 (CAS CATO-C4X-108369)
- Levocetirizine Impurity 35 (CAS 130018-76-7)
Recommended Standards
- 2-Furancarboxaldehyde, polymer with phenol (CAS 26338-61-4)
- Flazasulfuron (CAS 104040-78-0)
- 2,2′-(3,5-Pyridinediyl)bis[1,4-benzenedicarboxylic acid] (CAS 2243958-66-7)
- 6-((3,5-Dichlorophenyl)thio)-5-ethyl-1-((2-hydroxyethoxy)methyl)-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 137897-90-6)
- Capecitabine EP Impurity D （Mixture of Diastereomers） (CAS 910129-15-6)
- Benidipine Impurity N8 (CAS 3323-73-7)
- Vericiguat Impurity 93 (CAS CATO-C4X-289693)
- 3,9-Diundecyl-12,13-dihydro-[1,2,5]thiadiazolo[3,4-e]thieno[2'',3'':4',5']thieno[2',3':4,5]pyrrolo[3,2-g]thieno[2',3':4,5]thieno[3,2-b]indole (CAS 2304444-51-5)
- 4-(6-Amino-9H-purin-9-yl)buta-2,3-dien-1-ol (CAS 114987-18-7)
- 2-Methyl-N-(2-methylallyl)cyclohexan-1-amine (CAS 1226071-68-6)
- 3-(cycloheptylsulfamoyl)thiophene-2-carboxylic acid (CAS 944894-50-2)
- 4-(2-Bromopyrimidin-4-yl)morpholine (CAS 1209459-32-4)
- 1,5-Difluoro-2-methoxy-4-(trifluoromethyl)benzene (CAS 1935291-66-9)
- Semaglutide impurity 73 (CAS CATO-C4X-222673)
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