Firocoxib Impurity 6 CAS CATO-C4X-32116
| CAS No. | CATO-C4X-32116 |
| Molecular Formula | C15H18O5S |
| Molecular Weight | 310.37 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.
As a process- or degradation-related impurity, Firocoxib Impurity 6 (CAS CATO-C4X-32116, C15H18O5S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage, Firocoxib Impurity 6 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 310.37 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Firocoxib Impurity 6 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C15H18O5S |
| Molecular Weight | 310.37 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Sulfur Atoms | 1 |
Related Firocoxib Standards
- Firocoxib Impurity 2 (CAS 189955-79-1)
- Firocoxib Impurity 1 (CAS CATO-C4X-32111)
- Firocoxib (CAS 189954-96-9)
- Firocoxib Impurity 2 (CAS CATO-C4X-32112)
- Firocoxib Impurity 3 (CAS CATO-C4X-32113)
- Firocoxib Impurity 4 (CAS 246869-15-8)
- Firocoxib Impurity 1 (CAS 204390-60-3)
- Firocoxib Impurity 1 (CAS 53207-58-2)
Recommended Standards
- Sumatriptan impurity 2 (CAS CATO-C4X-17572)
- Edifenphos (CAS 17109-49-8)
- Sumatriptan impurity 1 (CAS CATO-C4X-17571)
- Sinapine (CAS 18696-26-9)
- Cinacalcet Impurity 46 (CAS 2062-25-1)
- Pinaverium Impurity 4 (CAS CATO-C4X-24674)
- Pimecrolimus Impurity 9 (CAS CATO-C4X-17319)
- N-Desmethyl Mepyramine (CAS 104499-47-0)
- Z-Gly-Val-OH (CAS 33912-87-7)
- 1-((3aR,4R,6R,6aR)-4-(hydroxymethyl)tetrahydrospiro[cyclopentane-1,2-furo[3,4-d][1,3]dioxol]-6-yl)pyrimidine-2,4(1H,3H)-dione (CAS 5297-71-2)
- tert-butyl (1-((2,4-dichloropyrimidin-5-yl)methyl)pyrrolidin-3-yl)carbamate (CAS 1420987-32-1)
- Tert-butyl 2',3-dioxo-2,3-dihydrospiro[indene-1,4'-piperidine]-1'-carboxylate (CAS 1823835-30-8)
- Bisandrographolide C (CAS 160498-02-2)
- Neuroendocrine Regulatory Peptide-1 (human) (H-6622.1000) (CAS 954420-50-9)
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