Levetiracetam EP Impurity A CAS 103833-72-3
| CAS No. | 103833-72-3 |
| Molecular Formula | C8H13NO3 |
| Molecular Weight | 171.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Levetiracetam EP Impurity A is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 171.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Levetiracetam EP Impurity A (CAS 103833-72-3), a pharmacopoeial impurity reference standard (molecular formula C8H13NO3, MW 171.19 g/mol) used for the identification and quantification of trace impurities in APIs.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Levetiracetam EP Impurity A 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 | C8H13NO3 |
| Molecular Weight | 171.19 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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.) | 1986 |
| Nitrogen Atoms | 1 |
Related Levetiracetam Standards
- (S)-Levetiracetam EP Impurity A (CAS 102849-49-0)
- Levetiracetam EP Impurity A (CAS 67118-31-4)
- Levetiracetam (CAS 102767-28-2)
- Levetiracetam Racemate (CAS 33996-58-6)
- Levetiracetam EP Impurity D (CAS 103765-01-1)
- Levetiracetam Dehydro Acid (CAS 358629-39-7)
- Levetiracetam-d3 (CAS 1217851-16-5)
- Levetiracetam EP Impurity B (CAS 358629-47-7)
Recommended Standards
- 1-Acetylisonipecotic Acid (CAS 25503-90-6)
- Vigabatrin Impurity 13 (CAS 1824506-31-1)
- N-Butanoyl-DL-homoserine lactone (CAS 98426-48-3)
- Piracetam EP Impurity C (CAS 61516-73-2)
- Olanzapine Impurity 7 (CAS 138564-58-6)
- Tirofiban Impurity 120 HCl (CAS CATO-C4X-1254127)
- Clarithromycin EP Impurity J(Roxithromycin EP Impurity C) HCl (CAS 145645-54-1)
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- L-Noradrenaline Bitartrate Monohydrate (CAS 108341-18-0)
- 2-(7-Bromo-1-oxophthalazin-2(1H)-yl)propanoic acid (CAS 1437482-55-7)
- 4-(3-(4-(2,4-Diamino-6-methylpyrimidin-5-yl)benzyl)ureido)-2-methylbenzene-1-sulfonyl fluoride (CAS 50699-49-5)
- 3-Aminobenzotrifluoride (CAS 98-16-8)
- 4-Amino-n-(1h-imidazol-2-yl)-1-methyl-1h-pyrazole-3-carboxamide (CAS 1480596-23-3)
- Semaglutide impurity 101 (CAS CATO-C4X-2226101)
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