Firocoxib Impurity 3 CAS CATO-C4X-32113
| CAS No. | CATO-C4X-32113 |
| Molecular Formula | C17H22O5S |
| Molecular Weight | 338.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Firocoxib Impurity 3 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.
Firocoxib Impurity 3 (CAS CATO-C4X-32113) is a certified pharmaceutical impurity reference standard with the molecular formula C17H22O5S and a molecular weight of 338.42 g/mol.
Based on its molecular formula C17H22O5S, Firocoxib Impurity 3 contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 338.42 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C17H22O5S |
| Molecular Weight | 338.42 g/mol |
| Purity | >95% |
| 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 CATO-C4X-32112)
- Firocoxib (CAS 189954-96-9)
- Firocoxib Impurity 4 (CAS 246869-15-8)
- Firocoxib Impurity 1 (CAS CATO-C4X-32111)
- Firocoxib Impurity 6 (CAS CATO-C4X-32116)
- Firocoxib Impurity 2 (CAS 189955-79-1)
- Firocoxib Impurity 1 (CAS 204390-60-3)
- Firocoxib Impurity 1 (CAS 53207-58-2)
Recommended Standards
- Dorzolamide N-Desethyl N-Acetyl Impurity (CAS 147200-03-1)
- Mizolastine Impurity 1 (CAS 108635-83-2)
- 2-(2-(1H-indol-3-yl)acetyl)-N-benzylhydrazine-1-carbothioamide (CAS 1022401-73-5)
- Brinzolamide Impurity 16 (CAS 171273-35-1)
- Glumetinib Impurity 4 (CAS CATO-C4X-32594)
- Paliperidone Impurity 104 (CAS CATO-C4X-1724104)
- Larotrectinib impurity 9 (CAS CATO-C4X-23809)
- 2,3,3-Trimethyl-1-octyl-3H-indol-1-ium iodide (CAS 96359-59-0)
- Methyl 1-Methyl-2-oxopyrrolidine-4-carboxylate (CAS 59857-86-2)
- 2-Cyclohexyl-5-phenyloxazole (CAS 18860-06-5)
- 6-Fluoro-2,3-dihydrobenzofuran-3-acetic Acid (CAS 1550937-08-0)
- Methyl 2-(6-methoxy-4-oxoquinolin-1(4H)-yl)acetate (CAS 1171191-90-4)
- Cefixime Impurity 83 (CAS CATO-C4X-113983)
- Semaglutide Impurity 165 (CAS CATO-C4X-2226165)
Why CATO?
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