Parecoxib Impurity 36 CAS CATO-C4X-159136
| CAS No. | CATO-C4X-159136 |
| Molecular Formula | C16H13NO4S |
| Molecular Weight | 315.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Parecoxib Impurity 36 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 315.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Parecoxib Impurity 36 (CAS CATO-C4X-159136), a pharmacopoeial impurity reference standard (molecular formula C16H13NO4S, MW 315.34 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.
CATO manufactures Parecoxib Impurity 36 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 | C16H13NO4S |
| Molecular Weight | 315.34 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Parecoxib Standards
- Parecoxib Impurity 33 (CAS CATO-C4X-159133)
- Parecoxib Impurity 34 (CAS CATO-C4X-159134)
- Parecoxib Impurity 8 (CAS 181696-35-5)
- Parecoxib Impurity 80 (CAS 3363-92-6)
- Parecoxib Impurity 15 (CAS 386273-25-2)
- Parecoxib Impurity 2 (CAS 181695-72-7)
- Parecoxib Impurity 3 (CAS CATO-C4X-15913)
- Parecoxib Impurity 32 (CAS 181696-12-8)
Recommended Standards
- Sivelestat Impurity 8 (CAS CATO-C4X-21238)
- Ezetimibe Impurity 28 (CAS CATO-C4X-109828)
- Hybutimibe Impurity 4 (CAS CATO-C4X-25054)
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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