Levocetirizine Impurity 41 CAS CATO-C4X-108341
| CAS No. | CATO-C4X-108341 |
| Molecular Formula | C25H32ClN2O6 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Levocetirizine Impurity 41 is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Levocetirizine Impurity 41 (CAS CATO-C4X-108341, C25H32ClN2O6Cl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Levocetirizine Impurity 41 (C25H32ClN2O6Cl) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 527.44 g/mol, it falls into the moderately-high-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).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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 | C25H32ClN2O6 Cl |
| Molecular Weight | 527.44 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 50 (CAS 1074-42-6)
- Levocetirizine Impurity 5 (CAS 109036-15-9)
- Levocetirizine Impurity 43 (CAS 1116338-10-3)
- Levocetirizine Impurity 45 (CAS 1150310-68-1)
- Levocetirizine Dihydrochloride - Impurity H (Hydrochloride Salt) (CAS 1177093-13-8)
- Levocetirizine Impurity 24 (CAS 1232460-29-5)
- Levocetirizine Impurity 80 (CAS 1232460-31-9)
- Levocetirizine Impurity 17 (CAS 126517-38-2)
Recommended Standards
- Ubidecarenone Impurity 14 (Coenzyme Q4) (CAS 4370-62-1)
- Bupivacaine Impurity 33 (CAS 98626-61-0)
- (S)-Baxdrostat Impurity 25 (CAS 1428652-36-1)
- Benzaldehyde, 2-(acetyloxy)-3-methoxy- (CAS 7150-01-8)
- Posaconazole Impurity 265 (CAS CATO-C4X-1208265)
- 1-(4-(1-(2,4-Difluorophenyl)-1H-pyrazol-5-yl)phenyl)-3,3-dimethylazetidin-2-one (CAS 320422-75-1)
- 3-(Ethylsulfonyl)-2-phenyl-1H-pyrrole (CAS 1707379-41-6)
- 6-Acetamido-4-oxo-1,4-dihydroquinoline-2-carboxylic acid (CAS 929028-76-2)
- Burimamide oxalate (CAS 34970-69-9)
- Semaglutide impurity 276 (CAS CATO-C4X-2226276)
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