Gliquidone Impurity 3 CAS 55974-25-9
| CAS No. | 55974-25-9 |
| Molecular Formula | C12H12O4 |
| Molecular Weight | 220.22 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 220.22 g/mol gives Gliquidone Impurity 3 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Gliquidone Impurity 3 (CAS 55974-25-9) is a certified pharmaceutical impurity reference standard with the molecular formula C12H12O4 and a molecular weight of 220.22 g/mol.
Structurally, Gliquidone Impurity 3 (C12H12O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 220.22 g/mol, it falls into the medium-molecular-weight range. 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).
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.
As a certified reference material (CRM), Gliquidone 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 | C12H12O4 |
| Molecular Weight | 220.22 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
Related Gliquidone Standards
- Gliquidone Impurity 1 (CAS 52962-25-1)
- Gliquidone Impurity 7 (CAS 1136-01-2)
- Gliquidone Impurity 4 (CAS 33214-38-9)
- Gliquidone Impurity 6 (CAS 51632-31-6)
- Gliquidone Impurity 4 (CAS 191988-38-2)
- Gliquidone Impurity 1 (CAS 76746-95-7)
- Gliquidone Impurity 5 (CAS 1314701-46-6)
- Gliquidone Impurity 8 (CAS 1133-54-6)
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