Levocetirizine Impurity 9 CAS 942283-97-8
| CAS No. | 942283-97-8 |
| Molecular Formula | C24H25ClN2O2S |
| Molecular Weight | 440.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Levocetirizine Impurity 9 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Levocetirizine Impurity 9 (CAS 942283-97-8) is a high-purity analytical reference standard with the molecular formula C24H25ClN2O2S and a molecular weight of 440.99 g/mol.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, Levocetirizine Impurity 9 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 440.99 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C24H25ClN2O2S |
| Molecular Weight | 440.99 g/mol |
| Purity | 97%+ |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Levocetirizine Standards
- Levocetirizine Impurity 19 (CAS CATO-C4X-108319)
- Levocetirizine Impurity 49 (CAS CATO-C4X-108349)
- Levocetirizine Impurity 65 (CAS CATO-C4X-108365)
- Levocetirizine Impurity 47 (CAS CATO-C4X-108347)
- Levocetirizine Impurity 69 (CAS CATO-C4X-108369)
- Levocetirizine Impurity 64 (CAS CATO-C4X-108364)
- Levocetirizine Impurity 11 (CAS 246870-46-2)
- Levocetirizine Impurity 43 (CAS 1116338-10-3)
Recommended Standards
- 2-((4-Allyl-5-(4-(tert-butyl)phenyl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-chlorophenyl)acetamide (CAS 538337-08-5)
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- 1-((4-chlorophenyl)(phenyl)methyl)-4-tosylpiperazine (CAS 163837-56-7)
- Dutasteride Impurity N6 (CAS 188589-66-4)
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- 3-{3-[(2-chloro-6-fluorophenyl)methoxy]phenyl}-1-(4-chlorobenzenesulfonyl)-1H-pyrazole (CAS 477712-73-5)
- (2-Chloro-5-(trifluoromethyl)pyridin-3-yl)methanol (CAS 943551-28-8)
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- 2,3-Difluoro-1-Methylcyclopropanecarbonyl Chloride (CAS 315690-85-8)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com