Mycophenolate Mofetil EP Impurity H CAS 79081-87-1
| CAS No. | 79081-87-1 |
| Molecular Formula | C17H20O6 |
| Molecular Weight | 320.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C17H20O6, Mycophenolate Mofetil EP Impurity H contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 320.34 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).
Mycophenolate Mofetil EP Impurity H (CAS 79081-87-1) is a certified pharmaceutical impurity reference standard with the molecular formula C17H20O6 and a molecular weight of 320.34 g/mol.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C17H20O6 |
| Molecular Weight | 320.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
Related Mycophenolate Standards
- Mycophenolate Mofetil Impurity 14 (CAS 33431-38-8)
- Mycophenolate Mofetil Impurity 15 (CAS 24243-38-7)
- Mycophenolate Mofetil EP Impurity H (CAS 26675-76-3)
- Mycophenolate EP Impurity B (CAS 2767988-82-7)
- Mycophenolate Impurity 22 (CAS CATO-C4X-151522)
- Mycophenolate Impurity 24 (CAS CATO-C4X-151524)
- Mycophenolate Mofetil EP Impurity E (CAS 31858-66-9)
- Mycophenolate Mofetil Impurity 17 (CAS 26644-06-4)
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