Oxiracetam Impurity 5 CAS 120428-80-0
| CAS No. | 120428-80-0 |
| Molecular Formula | C8H13N3O4 |
| Molecular Weight | 215.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Oxiracetam Impurity 5 (CAS 120428-80-0, C8H13N3O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C8H13N3O4, Oxiracetam Impurity 5 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 215.21 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.
As a certified reference material (CRM), Oxiracetam Impurity 5 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 | C8H13N3O4 |
| Molecular Weight | 215.21 g/mol |
| Appearance | Off-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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 3 |
Related Oxiracetam Standards
- Oxiracetam impurity 22 (CAS CATO-C4X-101122)
- Oxiracetam Impurity 12 (CAS 88-00-6)
- Oxiracetam Impurity 11 (CAS 870695-39-9)
- Oxiracetam Impurity 3 (CAS 62613-81-4)
- Oxiracetam Impurity 18 (CAS 142274-08-6)
- Oxiracetam Impurity 2 (CAS 85614-52-4)
- Oxiracetam Impurity 9 (CAS 142274-07-5)
- Oxiracetam Impurity 15 (CAS 89490-41-5)
Recommended Standards
- 198195-06-1 3-(Pyrimidin-2-ylamino)-benzoic acid 6670AD C11H9N3O2 (CAS 198195-06-1)
- Sofosbuvir Impurity 113 (CAS 26661-13-2)
- tert-butyl 2-(3,5-dioxo-1,2,4-triazolidin-4-yl)acetate (CAS 1989672-34-5)
- Metronidazole Impurity 20 (CAS 19765-12-9)
- Atogepant Impurity 91 (CAS CATO-C4X-328591)
- Pranoprofen Impurity 47 (CAS CATO-C4X-181147)
- Iptacopan Impurity 7 (CAS 1644670-76-7)
- (4-methyl-3,4-dihydro-2H-1,4-benzoxazin-6-yl)methanol (CAS 1216059-50-5)
- tert-Butyl 3-(aminomethyl)indoline-1-carboxylate (CAS 1086392-24-6)
- 4-Chloro-6-(difluoromethyl)-5-formylpicolinonitrile (CAS 1805260-38-1)
- 5-Chlorochroman-3-amine hydrochloride (CAS 2060000-36-2)
- N-(3,4-dimethoxyphenethyl)-2-(methylamino)acetamide (CAS 20939-34-8)
- Methyl (2S,4S)-4-(2,3-dihydro-1H-inden-5-yloxy)-2-pyrrolidinecarboxylate (CAS 774576-77-1)
- A-18-F-NH2; Morphine Modulating Neuropeptide (CAS 99588-52-0)
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