Brivaracetam Impurity 131 CAS CATO-C4X-2007131
| CAS No. | CATO-C4X-2007131 |
| Molecular Formula | C11H20N2O2 |
| Molecular Weight | 212.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Brivaracetam Impurity 131 (CAS CATO-C4X-2007131), a pharmacopoeial impurity reference standard (molecular formula C11H20N2O2, MW 212.29 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C11H20N2O2, Brivaracetam Impurity 131 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 212.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C11H20N2O2 |
| Molecular Weight | 212.29 g/mol |
| Appearance | White to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 2 |
Related Brivaracetam Standards
- Brivaracetam (CAS 357336-20-0)
- Brivaracetam impurity 104 (CAS 357334-83-9)
- Brivaracetam Impurity 144 (CAS CATO-C4X-2007144)
- Brivaracetam Impurity 182 (CAS CATO-C4X-2007182)
- Brivaracetam Impurity 2 (CAS 357336-19-7)
- Brivaracetam Impurity 3 (CAS 357336-99-3)
- Brivaracetam Impurity 4 (CAS 357337-00-9)
- Brivaracetam Impurity 74 (CAS CATO-C4X-200774)
Recommended Standards
- Irbesartan Impurity 48 (CAS 253269-07-7)
- Irbesartan Impurity 46 (CAS CATO-C4X-166646)
- Irbesartan Impurity 44 (CAS CATO-C4X-166644)
- Irbesartan Impurity 42 (CAS CATO-C4X-166642)
- Salbutamol Impurity 104 (CAS 27566-09-2)
- Indometacin Impurity 50 (CAS CATO-C4X-147050)
- Cefmetazole Impurity 62 (CAS CATO-C4X-150762)
- 3-Methoxy-4-(oxetan-3-yloxy)aniline (CAS 1349717-19-6)
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- tert-Butyl 5-bromo-2-methylbenzoate (CAS 1202551-75-4)
- 3-(2-(Trifluoromethyl)phenyl)cyclopentanone (CAS 1341522-66-4)
- 287111-09-5 Caprylic acid-7,8-13C2 Octanoic acid-7,8-13C2 (CAS 287111-09-5)
- (D-Ser4)-LHRH trifluoroacetate salt (CAS 103065-82-3)
- Semaglutide Impurity 185 (CAS CATO-C4X-2226185)
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