Lornoxicam Impurity 11 CAS CATO-C4X-201611
| CAS No. | CATO-C4X-201611 |
| Molecular Formula | C8H8ClNO7S2 |
| Molecular Weight | 329.73 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Lornoxicam Impurity 11 (CAS CATO-C4X-201611) is a certified pharmaceutical impurity reference standard with the molecular formula C8H8ClNO7S2 and a molecular weight of 329.73 g/mol.
Owing to a carbohydrate-derived structure, an amide group, a sulfone group, chlorine substitution, Lornoxicam Impurity 11 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 329.73 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 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.
Physical & Chemical Properties
| Molecular Formula | C8H8ClNO7S2 |
| Molecular Weight | 329.73 g/mol |
| Purity | >95% |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Lornoxicam Standards
- Lornoxicam Impurity 35 (CAS CATO-C4X-201635)
- Lornoxicam Impurity 40 (CAS CATO-C4X-201640)
- Lornoxicam impurity 71 (CAS CATO-C4X-201671)
- Lornoxicam impurity 88 (CAS CATO-C4X-201688)
- Lornoxicam Impurity 36 (CAS CATO-C4X-201636)
- Lornoxicam Impurity 29 (CAS CATO-C4X-201629)
- Lornoxicam Impurity 47 (CAS 906522-87-0)
- Lornoxicam impurity 50 (CAS 1076197-25-5)
Recommended Standards
- Baclofen Impurity 61 (CAS CATO-C4X-101261)
- Roxadustat Impurity 23 (CAS CATO-C4X-221323)
- Flurbiprofen Impurity 38 (CAS 26039-74-7)
- Roxadustat Impurity 26 (CAS 2711953-58-9)
- Eltrombopag Impurity 112 (CAS CATO-C4X-1198112)
- Minocycline EP Impurity C (CAS 4708-96-7)
- Azithromycin Impurity 31 (CAS CATO-C4X-100331)
- 1-((1-Methyl-1h-pyrazol-4-yl)methyl)-1h-1,2,3-triazol-4-amine (CAS 1512078-42-0)
- Methyl 3-fluoro-4-(3-methoxyphenyl)benzoate (CAS 1820707-58-1)
- 4-Naphthalen-1-yl-thiazol-2-ylamine (CAS 56503-96-9)
- 9,10-Bis(4-methoxyphenyl)anthracene (CAS 24672-76-2)
- (2E)-4,4,4-Trifluoro-3-oxo-N-[4-(trifluoromethyl)phenyl]-2-{2-[4-(trifluoromethyl)phenyl]hydrazin-1-ylidene}butanamide (CAS 866131-03-5)
- 4-Cyano-N-(2-(isopropylamino)-2-oxoethyl)benzamide (CAS 940239-43-0)
- Semaglutide impurity 29 (CAS CATO-C4X-222629)
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