Lornoxicam impurity 95 CAS CATO-C4X-201695
| CAS No. | CATO-C4X-201695 |
| Molecular Formula | C7H8ClNO4S2 |
| Molecular Weight | 269.73 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Lornoxicam impurity 95 (C7H8ClNO4S2) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Lornoxicam impurity 95 (CAS CATO-C4X-201695) is a certified pharmaceutical impurity reference standard with the molecular formula C7H8ClNO4S2 and a molecular weight of 269.73 g/mol.
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.
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 | C7H8ClNO4S2 |
| Molecular Weight | 269.73 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Lornoxicam Standards
- Lornoxicam Impurity 16 (CAS 70374-37-7)
- Lornoxicam Impurity 45 (CAS CATO-C4X-201645)
- Lornoxicam impurity 65 (CAS CATO-C4X-201665)
- Lornoxicam impurity 91 (CAS 1629361-76-7)
- Lornoxicam Impurity 25 (CAS CATO-C4X-201625)
- Lornoxicam impurity 92 (CAS 1629337-69-4)
- Lornoxicam impurity 48 (CAS 126910-68-7)
- Lornoxicam Impurity 96 (CAS CATO-C4X-201696)
Recommended Standards
- 2-chloro-N-{[1-(4-fluorophenyl)cyclopentyl]methyl}acetamide (CAS 1269151-64-5)
- Bromfenac Impurity 76 (CAS 1623751-93-8)
- 2-Chloro-n-[cyclopentyl(4-fluorophenyl)methyl]acetamide (CAS 1311317-22-2)
- Metoclopramide Impurity 130 (CAS CATO-C4X-1415130)
- Toremifene impurity 01 (CAS 89778-26-7)
- Lifitegrast Impurity 67 (CAS CATO-C4X-240967)
- Piracetam impurity 33 (CAS CATO-C4X-123533)
- N-(4-chlorophenyl)-2-((4-fluoro-N-phenylphenyl)sulfonamido)acetamide (CAS 339103-36-5)
- 2-(5-Amino-1h-1,2,4-triazol-1-yl)acetic acid (CAS 1341722-85-7)
- Homochelidonine (CAS 476-33-5)
- 1-(2,3-Dihydro-1H-benzo[d]imidazo[1,2-a]imidazol-1-yl)-3-(3,5-dimethyl-1H-pyrazol-4-yl)propan-1-one (CAS 1286696-50-1)
- [1-(aminomethyl)cyclopropyl]methanol;hydrochloride (CAS 1400877-64-6)
- 5-Chloro-8-methyl-4-quinolinol (CAS 203626-37-3)
- Semaglutide impurity 37 (CAS CATO-C4X-222637)
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