Topiramate Impurity 15 CAS 128316-82-5
| CAS No. | 128316-82-5 |
| Molecular Formula | C12H21NO5 |
| Molecular Weight | 259.30 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 259.30 g/mol gives Topiramate Impurity 15 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Topiramate Impurity 15 (CAS 128316-82-5) is a certified pharmaceutical impurity reference standard with the molecular formula C12H21NO5 and a molecular weight of 259.30 g/mol.
Topiramate Impurity 15 (C12H21NO5) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures Topiramate Impurity 15 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 | C12H21NO5 |
| Molecular Weight | 259.30 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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 |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 1 |
Related Topiramate Standards
- Topiramate Didesacetal Impurity (CAS 106881-42-9)
- Topiramate Impurity 24 (CAS 582-52-5)
- Topiramate Impurity 25 (CAS 25018-67-1)
- Topiramate Impurity 40 (CAS CATO-C4X-176840)
- Topiramate EP Impurity A (CAS 20880-92-6)
- Topiramate Impurity 12 (CAS CATO-C4X-176812)
- Topiramate Impurity 1 (CAS 32785-90-3)
- Topiramate Impurity 13 (CAS 86569-78-0)
Recommended Standards
- Norepinephrine Impurity 128 (CAS 2504336-93-8)
- Brivaracetam Impurity 84 (CAS CATO-C4X-200784)
- Dobutamine Impurity 54 (CAS CATO-C4X-129854)
- Amlexanox Impurity 3 (CAS CATO-C4X-21763)
- Dabrafenib Impurity 28 (CAS CATO-C4X-303328)
- Sunitinib Impurity 62 (CAS CATO-C4X-133362)
- Orforglipron Impurity 97 (CAS 2212021-82-2)
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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