Lornoxicam impurity 66 CAS CATO-C4X-201666
| CAS No. | CATO-C4X-201666 |
| Molecular Formula | C6H5ClO5S2 |
| Molecular Weight | 256.68 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Lornoxicam impurity 66 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.
CATO supplies Lornoxicam impurity 66 (CAS CATO-C4X-201666), a pharmacopoeial impurity reference standard (molecular formula C6H5ClO5S2, MW 256.68 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a carbohydrate-derived structure, a sulfone group, chlorine substitution, Lornoxicam impurity 66 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 256.68 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.
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 | C6H5ClO5S2 |
| Molecular Weight | 256.68 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), 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; 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 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related Lornoxicam Standards
- Lornoxicam Impurity 44 (CAS 1030422-51-5)
- Lornoxicam Impurity 74 (CAS CATO-C4X-201674)
- Lornoxicam Impurity 102 (CAS CATO-C4X-2016102)
- Lornoxicam Impurity 33 (CAS 941239-79-8)
- Lornoxicam Impurity 6 (CAS 70374-36-6)
- Lornoxicam impurity 69 (CAS CATO-C4X-201669)
- Lornoxicam Impurity 14 (CAS 868393-66-2)
- Lornoxicam Impurity 39 (CAS 98827-44-2)
Recommended Standards
- Cinepazide Impurity 12 (CAS 10263-19-1)
- 3-(3-(4-Chlorobenzyl)ureido)propanoic acid (CAS 1018300-38-3)
- Azelastine impurity 61 (CAS CATO-C4X-139661)
- 6-Chloro-2-phenylquinazolin-4(3H)-one (CAS 1026-12-6)
- Tucatinib Impurity 5 (CAS CATO-C4X-26055)
- Vonoprazan Fumarate Impurity 23 (CAS 928615-46-7（free base）)
- Bortezomib Impurity 21 (CAS 18680-27-8)
- 2-(4-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)ethyl (3-(trifluoromethyl)phenyl)carbamate (CAS 338748-57-5)
- Diethyleneglycol diformate (CAS 120570-77-6)
- Crisaborole impurity 125 (CAS CATO-C4X-2021125)
- (S)-tert-Butyl 7-methyl-2,6-diazaspiro[3.4]octane-2-carboxylate (CAS 2768875-78-9)
- 8a-Methyl-5-oxo-hexahydro-[1,3]thiazolo[2,3-c]thiomorpholine-3-carboxylic acid (CAS 1214654-03-1)
- 2,3-dimorpholinoquinoxaline (CAS 6307-64-8)
- D-Thr7-Tirzepatide (CAS CATO-CPTD788924)
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