Lornoxicam Impurity 9 CAS 70415-50-8
| CAS No. | 70415-50-8 |
| Molecular Formula | C9H8ClNO5S2 |
| Molecular Weight | 309.75 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 309.75 g/mol gives Lornoxicam Impurity 9 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Lornoxicam Impurity 9 (CAS 70415-50-8, C9H8ClNO5S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, Lornoxicam Impurity 9 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 309.75 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.
As a certified reference material (CRM), Lornoxicam Impurity 9 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 | C9H8ClNO5S2 |
| Molecular Weight | 309.75 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Lornoxicam Standards
- Lornoxicam Impurity 99 (CAS CATO-C4X-201699)
- Lornoxicam impurity 83 (CAS CATO-C4X-201683)
- Lornoxicam Impurity 4 (CAS 106820-59-1)
- Lornoxicam Impurity 107 (CAS CATO-C4X-2016107)
- Lornoxicam Impurity 3 (CAS CATO-C4X-20163)
- Lornoxicam Impurity 79 (CAS 1629463-16-6)
- Lornoxicam Impurity 109 (CAS CATO-C4X-2016109)
- Lornoxicam Impurity 28 (CAS CATO-C4X-201628)
Recommended Standards
- N-(4-Chlorophenyl)-2-(4-ethyl-2,3-dioxopiperazin-1-yl)acetamide (CAS 868680-44-8)
- N-((2-Chloropyridin-3-yl)carbamothioyl)-2-fluorobenzamide (CAS 866014-51-9)
- [Propanedioato(2-)-O,O'](8-quinolinamine-N1,N8)copper (CAS 64828-02-0)
- 5-[(Z)-2-(2-Chlorophenyl)diazen-1-yl]-4-phenylpyrimidin-2-amine (CAS 339279-61-7)
- Nemonoxacin Impurity 91 (CAS CATO-C4X-312891)
- Clevidipine Impurity 42 (CAS CATO-C4X-101542)
- Piroxicam Impurity 15 (CAS 208051-67-6)
- 1-(2-Methoxy-4-nitrophenyl)-3,5-dimethyl-1H-pyrazole-4-carbaldehyde (CAS 1159697-62-7)
- Avibactam Impurity 64 (CAS CATO-C4X-134864)
- [(1R,4S)-7,7-dimethyl-2-oxo-norbornan-1-yl]methanesulfonic acid;hemi((2R)-piperazine-2-carboxylic acid) (CAS 278790-39-9)
- Methyl 3-(difluoromethyl)picolinate (CAS 1443286-98-3)
- Bis(2-methylphenyl)methanone (CAS 1018-97-9)
- 2-chloro-N-methoxyacetamide (CAS 36851-81-7)
- Peptide YY (3-36) (canine, mouse, porcine, rat) trifluoroacetate salt (CAS 126339-09-1)
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