Lornoxicam Impurity 6 CAS 70374-36-6
| CAS No. | 70374-36-6 |
| Molecular Formula | C6H6ClNO4S2 |
| Molecular Weight | 255.70 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Lornoxicam Impurity 6 (C6H6ClNO4S2) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO supplies Lornoxicam Impurity 6 (CAS 70374-36-6), a pharmacopoeial impurity reference standard (molecular formula C6H6ClNO4S2, MW 255.70 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
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 | C6H6ClNO4S2 |
| Molecular Weight | 255.70 g/mol |
| Purity | >95% |
| 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 |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Lornoxicam Standards
- Lornoxicam Impurity 102 (CAS CATO-C4X-2016102)
- Lornoxicam Impurity 33 (CAS 941239-79-8)
- Lornoxicam Impurity 44 (CAS 1030422-51-5)
- Lornoxicam impurity 66 (CAS CATO-C4X-201666)
- Lornoxicam Impurity 74 (CAS CATO-C4X-201674)
- Lornoxicam impurity 69 (CAS CATO-C4X-201669)
- Lornoxicam Impurity 31 (CAS CATO-C4X-201631)
- Lornoxicam Impurity 43 (CAS CATO-C4X-201643)
Recommended Standards
- Carteolol EP Impurity D (CAS 51781-13-6)
- 4-Chloro-2-methyl-8-trifluoromethyl-quinoline (CAS 140908-89-0)
- Bromfenac Impurity 26 (CAS 76049-81-5)
- 4-Chloro-2-methyl-7-(trifluoromethyl)quinoline (CAS 18529-09-4)
- Atrasentan Impurity 144 (CAS 1058349-57-7)
- Ilaprazole Impurity 120 (CAS 137791-95-8)
- Aztreonam Impurity 24 (CAS CATO-C4X-152224)
- tert-Butyl 5-bromo-6-methylpicolinate (CAS 2404734-24-1)
- (1R,2R)-2-fluorocyclopropane-1-carboxamide (CAS 1932370-98-3)
- Lumateperone Impurity 19 (CAS CATO-C4X-220119)
- 2,4-Dibromo-3-(((tetrahydro-2H-pyran-2-yl)oxy)methyl)pyridine (CAS 2485861-44-5)
- (2-Bromo-4-chloro-5-methoxyphenyl)boronic acid (CAS 2225176-63-4)
- Methyl 3-(1-benzyl-4-(4-(3-(trifluoromethyl)phenyl)piperazin-1-yl)piperidin-3-yl)propanoate (CAS 1134331-53-5)
- Semaglutide Impurity 133 (CAS CATO-C4X-2226133)
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