Mupirocin EP Impurity E Sodium Salt CAS 116182-44-6
| CAS No. | 116182-44-6 |
| Molecular Formula | C26H43O9 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Mupirocin EP Impurity E Sodium Salt (CAS 116182-44-6) is a certified pharmaceutical impurity reference standard with the molecular formula C26H43O9Na and a molecular weight of 522.61 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Mupirocin EP Impurity E Sodium Salt is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 522.61 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C26H43O9 Na |
| Molecular Weight | 522.61 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >90% |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
Related Mupirocin Standards
- Mupirocin calcium (CAS 104486-81-9)
- Mupirocin Calcium Dihydrate (CAS 115074-43-6)
- Mupirocin EP Impurity D Sodium Salt (CAS 116182-43-5)
- Mupirocin Impurity 18 (CAS 1246812-11-2)
- Mupirocin (CAS 12650-69-0)
- Mupirocin Impurity 17 (CAS 153900-96-0)
- Mupirocin Impurity 13 (CAS 167842-57-1)
- Mupirocin EP Impurity F (CAS 167842-64-0)
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