Lornoxicam Impurity 34 CAS 1333316-61-2
| CAS No. | 1333316-61-2 |
| Molecular Formula | C6H4ClNO3S2 |
| Molecular Weight | 237.68 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Lornoxicam Impurity 34 (CAS 1333316-61-2), a pharmacopoeial impurity reference standard (molecular formula C6H4ClNO3S2, MW 237.68 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Lornoxicam Impurity 34 (C6H4ClNO3S2) 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 manufactures Lornoxicam Impurity 34 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H4ClNO3S2 |
| Molecular Weight | 237.68 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Lornoxicam Standards
- Lornoxicam Impurity 41 (CAS CATO-C4X-201641)
- Lornoxicam Impurity 26 (CAS 59804-27-2)
- Lornoxicam impurity 62 (CAS CATO-C4X-201662)
- Lornoxicam impurity 70 (CAS CATO-C4X-201670)
- Lornoxicam Impurity 77 (CAS CATO-C4X-201677)
- Lornoxicam impurity 56 (CAS CATO-C4X-201656)
- Lornoxicam Impurity N1 (CAS 1017791-22-8)
- Lornoxicam Impurity 7 (CAS 187746-94-7)
Recommended Standards
- Brexpiprazole Impurity 51 (CAS 79145-59-8)
- 5-Chloro-2-((1-methyl-1H-pyrazol-4-yl)methoxy)aniline (CAS 1006962-56-6)
- Brexpiprazole impurity 124 (CAS 146121-18-8)
- 5-Chloro-2-(piperidin-4-yl)oxazolo[5,4-b]pyridine (CAS 1023817-55-1)
- Ethacridine Lactate EP Impurity A (CAS 144335-20-6)
- Nebivolol Impurity 84 (CAS CATO-C4X-196884)
- Azacitidine Impurity 61 (CAS 18265-49-1)
- Methylnaphthidate hydrochloride, threo, racemic (CAS 219915-69-2)
- Betameprodine Hydrochloride (CAS 57401-82-8)
- tert-Butyl (3R,4R)-3-fluoro-4-hydroxypiperidine-1-carboxylate (CAS 1174020-43-9)
- 3-Isopropylpyridazine (CAS 68031-23-2)
- (2S,3S,3aS,6R,7aR)-4-benzyl-3-((tert-butyldiphenylsilyl)oxy)octahydro-1H-2,6-methanopyrrolo[3,2-b]pyridine (CAS 2088315-94-8)
- 4-(Propylthio)aniline hydrochloride (CAS 91267-24-2)
- Semaglutide Impurity 148 (CAS CATO-C4X-2226148)
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