Lornoxicam impurity 50 CAS 1076197-25-5
| CAS No. | 1076197-25-5 |
| Molecular Formula | C9H10ClNO6S2 |
| Molecular Weight | 327.76 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Lornoxicam impurity 50 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.
Lornoxicam impurity 50 (CAS 1076197-25-5) is a certified pharmaceutical impurity reference standard with the molecular formula C9H10ClNO6S2 and a molecular weight of 327.76 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, Lornoxicam impurity 50 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 327.76 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 | C9H10ClNO6S2 |
| Molecular Weight | 327.76 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 |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Lornoxicam Standards
- Lornoxicam Impurity 29 (CAS CATO-C4X-201629)
- Lornoxicam Impurity 47 (CAS 906522-87-0)
- Lornoxicam Impurity 36 (CAS CATO-C4X-201636)
- Lornoxicam Impurity 11 (CAS CATO-C4X-201611)
- 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)
Recommended Standards
- Diflumetorim (CAS 130339-07-0)
- N4-Hydroxymethyl hydrochlorothiazide (CAS 1216599-78-8)
- Bepotastine Impurity 25 (CAS CATO-C4X-183925)
- 2-(4-Chlorophenyl)-N-(2,4-diaminoquinazolin-6-yl)acetamide (CAS 55096-48-5)
- Azithromycin EP Impurity J (CAS 117693-41-1)
- Ticagrelor Impurity 3 (CAS 2096989-56-7)
- Tolvaptan Impurity 45 (CAS 2458812-60-5)
- 2-Amino-6-methyl-5-(3-phenoxybenzyl)pyrimidin-4(3H)-one (CAS 1296346-79-6)
- N-(8-Amino-6-fluoro-5-methyl-1-oxo-1,2,3,4-tetrahydronaphthalen-2-yl)acetamide (CAS 182182-31-6)
- 2-CHloro-n-(4-[(2-ethylpiperidin-1-yl)sulfonyl]phenyl)acetamide (CAS 444109-84-6)
- 3,4-Diisopropoxy-3-cyclobutene-1,2-dione (CAS 61699-62-5)
- 4-Hydroxy-2-methylthieno[2,3-d]pyrimidine-5-carboxylic acid (CAS 1216288-05-9)
- Benzydamine (CAS 642-72-8)
- Semaglutide impurity 86 (CAS CATO-C4X-152686)
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