Levocetirizine Impurity 66 CAS 439858-21-6
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 439858-21-6 |
| Molecular Formula | C17H19ClN2 |
| Molecular Weight | 286.80 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Levocetirizine Impurity 66 (CAS 439858-21-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C17H19ClN2. Molecular weight: 286.80 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C17H19ClN2 |
| Molecular Weight | 286.80 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- Cetirizine EP Impurity A (CAS 303-26-4)
- 3-Bromo-2-fluoro-6-(trifluoromethyl)phenylboronic acid (CAS 1451392-89-4)
- (4-Bromo-2-fluoro-5-(trifluoromethyl)phenyl)boronic acid (CAS 1451393-15-9)
- Meropenem Impurity 7 (CAS CATO-C4X-13097)
- Codeine Phosphate Hemihydrate EP Impurity K (CAS 508-54-3)
- n-(4-Iodophenyl)-5-oxopyrrolidine-2-carboxamide (CAS 1009500-34-8)
- 1-(3-Amino-4-hydroxyphenyl)ethan-1-one (CAS 54255-50-4)
- Potassium 4-chloro-2-(thiophene-2-carboxamido)benzoate (CAS 1011405-11-0)
- Methyl 3-(phenylethynyl)benzoate (CAS 207845-32-7)
- Semaglutide impurity 25 (CAS CATO-C4X-222625)
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