Oxiracetam Impurity 3 CAS 62613-81-4
| CAS No. | 62613-81-4 |
| Molecular Formula | C8H13NO4 |
| Molecular Weight | 187.19 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, Oxiracetam Impurity 3 is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 187.19 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 Oxiracetam Impurity 3 (CAS 62613-81-4), a pharmacopoeial impurity reference standard (molecular formula C8H13NO4, MW 187.19 g/mol) used for the identification and quantification of trace impurities in APIs.
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), Oxiracetam Impurity 3 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 | C8H13NO4 |
| Molecular Weight | 187.19 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| 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.) | 1974 |
| Nitrogen Atoms | 1 |
Related Oxiracetam Standards
- Oxiracetam Impurity 11 (CAS 870695-39-9)
- Oxiracetam Impurity 18 (CAS 142274-08-6)
- Oxiracetam Impurity 12 (CAS 88-00-6)
- Oxiracetam impurity 22 (CAS CATO-C4X-101122)
- Oxiracetam Impurity 2 (CAS 85614-52-4)
- Oxiracetam Impurity 9 (CAS 142274-07-5)
- Oxiracetam Impurity 15 (CAS 89490-41-5)
- Oxiracetam Impurity 21 (CAS 85153-60-2)
Recommended Standards
- Vonoprazan Fumarate Impurity 19 (CAS 161958-62-9)
- 4W88LZM8VP 53055-05-3 Benzaldehyde, 3-methoxy-2-nitro- 3-Methoxy-2-nitrobenzaldehyde EINECS 258-332-9 UNII-4W88LZM8VP (CAS 53055-05-3)
- Cefixime Impurity 43 (CAS CATO-C4X-113943)
- 3227AE 4290-72-6 5,6-Dihydro-4H-pyrrolo[3,2,1-ij]quinoline-1,2-dione C11H9NO2 (CAS 4290-72-6)
- Tacrolimus Impurity 27 (CAS 104987-25-9)
- Nicotinic Acid EP Impurity C (CAS 104-90-5)
- Omeprazole Impurity 25 (CAS 73590-93-9)
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- trans-1-Methyl-4-trifluoromethyl-cyclohexane (CAS 13127-03-2)
- (Thr(PO3H2)231)-Tau Peptide (225-237) trifluoroacetate salt (CAS 1670270-09-3)
Why CATO?
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