Lornoxicam impurity 82 CAS CATO-C4X-201682
| CAS No. | CATO-C4X-201682 |
| Molecular Formula | C13H11ClN3O5S2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Lornoxicam impurity 82 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.
CATO supplies Lornoxicam impurity 82 (CAS CATO-C4X-201682), a pharmacopoeial impurity reference standard (molecular formula C13H11ClN3O5S2, MW 388.82 g/mol) used for the identification and quantification of trace impurities in APIs.
Lornoxicam impurity 82 (C13H11ClN3O5S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C13H11ClN3O5S2 |
| Molecular Weight | 388.82 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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) | 9.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Lornoxicam Standards
- Lornoxicam Impurity N1 (CAS 1017791-22-8)
- Lornoxicam Impurity 44 (CAS 1030422-51-5)
- Lornoxicam Impurity 4 (CAS 106820-59-1)
- Lornoxicam Impurity 37 (CAS 106820-63-7)
- Lornoxicam impurity 50 (CAS 1076197-25-5)
- Lornoxicam impurity 57 (CAS 1212061-59-0)
- Lornoxicam-D4 (CAS 1216527-48-8)
- Lornoxicam impurity 60 (CAS 123252-96-0)
Recommended Standards
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- 2-((1-(3-Fluorophenyl)ethyl)amino)propane-1,3-diol (CAS 1479640-68-0)
- 1-[3-(Methylsulfonyl)phenyl]cyclopentanecarbonitrile (CAS 2120495-01-2)
- (3R,5S)-Atorvastatin EP Impurity B (single configuration) Calcium salt (CAS 651770-09-1)
- MWB0804EO7 7783-90-6 Silver chloride Silver chloride (AgCl) Caswell No. 735A EINECS 232-033-3 EPA Pesticide Chemical Code 072506 Silver(I) chloride Silver monochloride Mark II UNII-MWB0804EO7 EC 232-033-3 (CAS 7783-90-6)
- Atrial Natriuretic Polypeptide (4-28), human (CAS 95896-08-5)
Why CATO?
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