Butylphthalide Impurity 53 CAS 122654-49-3
| CAS No. | 122654-49-3 |
| Molecular Formula | C13H17NO |
| Molecular Weight | 203.28 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Butylphthalide Impurity 53 (CAS 122654-49-3) is a certified pharmaceutical impurity reference standard with the molecular formula C13H17NO and a molecular weight of 203.28 g/mol.
Based on its molecular formula C13H17NO, Butylphthalide Impurity 53 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 203.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), Butylphthalide Impurity 53 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 | C13H17NO |
| Molecular Weight | 203.28 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 1 |
Related Butylphthalide Standards
- Butylphthalide Impurity 17 (CAS 691863-84-0)
- Butylphthalide Impurity 40 (CAS 1485081-46-6)
- Butylphthalide Impurity 78 (CAS 2944272-81-3)
- Butylphthalide Impurity 11 (CAS 111943-62-5)
- Butylphthalide Impurity 18 (CAS CATO-C4X-181318)
- Butylphthalide Impurity 76 (CAS 90965-68-7)
- Butylphthalide Impurity 24 (CAS 20871-32-3)
- Butylphthalide Impurity N4 (CAS 168288-19-5)
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