Etoricoxib impurity 67 CAS 859824-65-0
| CAS No. | 859824-65-0 |
| Molecular Formula | C13H17NO3S2 |
| Molecular Weight | 299.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Etoricoxib impurity 67 (CAS 859824-65-0) is a certified pharmaceutical impurity reference standard with the molecular formula C13H17NO3S2 and a molecular weight of 299.41 g/mol.
Etoricoxib impurity 67 (C13H17NO3S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Etoricoxib impurity 67 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 | C13H17NO3S2 |
| Molecular Weight | 299.41 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Etoricoxib Standards
- Etoricoxib Impurity 20 (CAS CATO-C4X-108020)
- Etoricoxib Impurity 23 (CAS 1810761-43-3)
- Etoricoxib Impurity 91 (CAS CATO-C4X-108091)
- Etoricoxib Impurity 18 (CAS 1027162-35-1)
- Etoricoxib Impurity 6 (CAS 221615-75-4)
- Etoricoxib Impurity 15 (CAS 307531-96-0)
- Etoricoxib Impurity 29 (CAS 1798110-01-6)
- Etoricoxib Impurity 38 (CAS CATO-C4X-108038)
Recommended Standards
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- trans-4-Cyanophenyl 4-pentylcyclohexanecarboxylate (CAS 62439-35-4)
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- 2-acetylbenzaldehyde (CAS 24257-93-0)
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- 6-Bromo-1,2,3,4-tetrahydroquinolin-8-ol (CAS 1400276-45-0)
- 4-(2-Methylphenyl)-2,6-diphenyl-4H-1,3,5-thiadiazine (CAS 477867-79-1)
- 1-Bromo-3,5-bis(difluoromethyl)benzene (CAS 1379370-60-1)
- Ac, Gastrin Releasing Peptide (20-27), porcine (CAS 77714-20-6)
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