Levetiracetam impurity 7 CAS CATO-C4X-10677
| CAS No. | CATO-C4X-10677 |
| Molecular Formula | C9H16ClNO3 |
| Molecular Weight | 221.68 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Levetiracetam impurity 7 (C9H16ClNO3) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 221.68 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Levetiracetam impurity 7 (CAS CATO-C4X-10677) is a certified pharmaceutical impurity reference standard with the molecular formula C9H16ClNO3 and a molecular weight of 221.68 g/mol.
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.
As a certified reference material (CRM), Levetiracetam impurity 7 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.
Physical & Chemical Properties
| Molecular Formula | C9H16ClNO3 |
| Molecular Weight | 221.68 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Levetiracetam Standards
- Levetiracetam Impurity 45 (CAS CATO-C4X-106745)
- Levetiracetam Impurity 26 (CAS 20496-01-9)
- Levetiracetam Impurity 25 (CAS 263552-76-7)
- Levetiracetam Impurity 32 (CAS 93778-15-5)
- Levetiracetam Impurity 22 (CAS CATO-C4X-106722)
- Levetiracetam impurity 6 (CAS CATO-C4X-10676)
- Levetiracetam Impurity 6 (CAS 4385-97-1)
- Levetiracetam USP Related Compound A (CAS 102767-31-7)
Recommended Standards
- 898767-70-9 6-(3-Chlorophenyl)-6-oxohexanenitrile DTXSID90642236 (CAS 898767-70-9)
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- 2-Chloro-1-(2,5-dimethyl-1H-indol-3-yl)ethanone 2066AF 887569-01-9 C12H12ClNO (CAS 887569-01-9)
- Pregabalin Impurity 56 (CAS CATO-C4X-131256)
- Semaglutide Impurity 177 (CAS CATO-C4X-2226177)
- Lusutrombopag Impurity 56 (CAS CATO-C4X-208456)
- Dolutegravir Impurity 32 (CAS CATO-C4X-162032)
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- Apixaban Impurity 22 (CAS 1449510-64-8)
- Proinsulin C-Peptide (55-89) (human) (CAS 11097-48-6)
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