Imrecoxib Impurity 71 CAS CATO-C4X-237971
| CAS No. | CATO-C4X-237971 |
| Molecular Formula | C36H32O8S2 |
| Molecular Weight | 656.76 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Imrecoxib Impurity 71 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.
As a process- or degradation-related impurity, Imrecoxib Impurity 71 (CAS CATO-C4X-237971, C36H32O8S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, Imrecoxib Impurity 71 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 656.76 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 | C36H32O8S2 |
| Molecular Weight | 656.76 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Sulfur Atoms | 2 |
Related Imrecoxib Standards
- Imrecoxib Impurity 64 (CAS CATO-C4X-237964)
- Imrecoxib Impurity 68 (CAS CATO-C4X-237968)
- Imrecoxib Impurity 72 (CAS CATO-C4X-237972)
- Imrecoxib Impurity 63 (CAS CATO-C4X-237963)
- Imrecoxib Impurity 77 (CAS CATO-C4X-237977)
- Imrecoxib Impurity 16-d7 (CAS 896729-08-1 (unlabelled))
- Imrecoxib Impurity 65 (CAS CATO-C4X-237965)
- Imrecoxib Impurity 12 (CAS 896729-08-1)
Recommended Standards
- Fmoc-D-(4,( Mtr)-guanido)Phe-OH (CAS 2044710-85-0)
- 2-((2-(Bis(4-methoxyphenyl)(phenyl)methoxy)ethyl)sulfonyl)ethyl (2-cyanoethyl) diisopropylphosphoramidite (CAS 108783-02-4)
- Candesartan Cilexetil Impurity 35 (CAS 1867269-67-7)
- 2-[(4-{9-[4-({[2-Carboxycyclohexyl]carbonyl}amino)phenyl]-9H-fluoren-9-yl}anilino)carbonyl]cyclohexanecarboxylic acid (CAS 1217631-94-1)
- Retigabine Impurity 1 (CAS CATO-C4X-13141)
- Rimegepant Impurity 138 (CAS CATO-C4X-2487138)
- N-Nitroso Terbutaline EP impurity C (CAS CATO-C4X-118394)
- 3,4-Dimethyl-1H-pyrrole-2,5-dicarbaldehyde (CAS 51952-99-9)
- 3-(4-Methoxy-2-nitrophenyl)-1-methyl-2-thioxoimidazolidin-4-one (CAS 956587-22-7)
- 1-(2-Bromoethyl)-4-(methylsulfonyl)benzene (CAS 214614-62-7)
- 1-(methylsulfanyl)-4-(propan-2-yl)benzene 7072-00-6 KST-1B7870 (CAS 7072-00-6)
- 2-Tert-butyl5-methyl2-azaspiro[3.3]heptane-2,5-dicarboxylate (CAS 1341036-87-0)
- 4-Bromo-1-cyclopropyl-1H-pyrazole-5-carbaldehyde (CAS 1512687-78-3)
- Semaglutide impurity 248 (CAS CATO-C4X-2226248)
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