Lornoxicam Impurity 22 CAS 167023-62-3
| CAS No. | 167023-62-3 |
| Molecular Formula | C9H7Cl2NO5S2 |
| Molecular Weight | 344.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Lornoxicam Impurity 22 (CAS 167023-62-3) is a certified pharmaceutical impurity reference standard with the molecular formula C9H7Cl2NO5S2 and a molecular weight of 344.19 g/mol.
Based on its molecular formula C9H7Cl2NO5S2, Lornoxicam Impurity 22 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 344.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), Lornoxicam Impurity 22 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 | C9H7Cl2NO5S2 |
| Molecular Weight | 344.19 g/mol |
| Purity | >90% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2004 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Lornoxicam Standards
- Lornoxicam Impurity 108 (CAS CATO-C4X-2016108)
- Lornoxicam Impurity 2 (CAS 70374-38-8)
- Lornoxicam Impurity 98 (CAS CATO-C4X-201698)
- Lornoxicam Impurity 24 (CAS CATO-C4X-201624)
- Lornoxicam impurity 93 (CAS CATO-C4X-201693)
- Lornoxicam impurity 84 (CAS CATO-C4X-201684)
- Lornoxicam Impurity 105 (CAS CATO-C4X-2016105)
- Lornoxicam impurity 89 (CAS CATO-C4X-201689)
Recommended Standards
- N-(4-(4,6-Dichloropyrimidin-2-yl)phenyl)benzamide (CAS 89508-37-2)
- N-(4-Bromo-3-fluorophenyl)-4-methylbenzenesulfonamide (CAS 1024250-92-7)
- N-(2-Boc-aminoethyl) 4-boronobenzenesulfonamide (CAS 874459-63-9)
- 1-Methyl-1H-indole-3-carboxylic acid 2-bromo-benzyl ester (CAS 1033692-98-6)
- Penehyclidine Impurity N1 (CAS 87827-02-9)
- Pitavastatin Impurity 21 (CAS 154057-56-4)
- Bilastine Impurity 4 (CAS 2761921-47-3)
- 4-Methoxy-pyridine-2-carboxylic acid hydrazide (CAS 187973-18-8)
- 6-[4-(difluoromethoxy)phenyl]-3-methyl-[1,2]oxazolo[5,4-b]pyridine-4-carboxylic acid (CAS 1011398-65-4)
- 2-{4-[3-(Aminomethyl)-2-pyridinyl]-1-piperazinyl}-1-ethanol (CAS 1156919-29-7)
- 2-((3-Methoxybenzyl)amino)-2-oxoethyl 2,6-difluorobenzoate (CAS 874950-61-5)
- 2-Methyl-2-(3-nitro-1h-pyrazol-1-yl)propanoic acid (CAS 1006435-66-0)
- 1,2,3,4,5-Pentabromo-6-fluorobenzene (CAS 827-05-4)
- Semaglutide impurity 71 (CAS CATO-C4X-222671)
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