Brivaracetam Impurity 179 CAS CATO-C4X-2007179
| CAS No. | CATO-C4X-2007179 |
| Molecular Formula | C14H18O4S |
| Molecular Weight | 282.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Brivaracetam Impurity 179.
As a process- or degradation-related impurity, Brivaracetam Impurity 179 (CAS CATO-C4X-2007179, C14H18O4S) 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, an aromatic ring system, Brivaracetam Impurity 179 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 282.36 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).
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C14H18O4S |
| Molecular Weight | 282.36 g/mol |
| Purity | ≥95% |
| 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 |
| Sulfur Atoms | 1 |
Related Brivaracetam Standards
- Brivaracetam Impurity 180 (CAS CATO-C4X-2007180)
- Brivaracetam Impurity 178 (CAS CATO-C4X-2007178)
- Brivaracetam Impurity 117 (CAS CATO-C4X-2007117)
- Brivaracetam Impurity 147 (CAS CATO-C4X-2007147)
- Brivaracetam Impurity 215 (CAS CATO-C4X-2007215)
- Brivaracetam Impurity 174 (CAS CATO-C4X-2007174)
- Brivaracetam Impurity 92 (CAS CATO-C4X-200792)
- Brivaracetam Impurity 201 (CAS CATO-C4X-2007201)
Recommended Standards
- Etoricoxib Impurity 38 (CAS CATO-C4X-108038)
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