Milnacipran Impurity 20 CAS 550-44-7
| CAS No. | 550-44-7 |
| Molecular Formula | C9H7NO2 |
| Molecular Weight | 161.16 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.
Milnacipran Impurity 20 (CAS 550-44-7) is a certified pharmaceutical impurity reference standard with the molecular formula C9H7NO2 and a molecular weight of 161.16 g/mol.
The molecular framework of Milnacipran Impurity 20 (C9H7NO2) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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), Milnacipran Impurity 20 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 | C9H7NO2 |
| Molecular Weight | 161.16 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 |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Milnacipran Standards
- Milnacipran impurity 02 (CAS 60788-55-8)
- Milnacipran USP Related Compound B (CAS 153275-06-0)
- Milnacipran Impurity 4 (CAS 810696-16-3)
- Milnacipran Impurity 10 (CAS 96847-52-8)
- Milnacipran impurity 24 (CAS 98647-52-8)
- Milnacipran Impurity 4 (CAS 64805-64-7)
- Milnacipran Impurity 16 (CAS 871100-19-5)
- Milnacipran Impurity 5 (CAS 1932365-99-5)
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