Lenalidomide Impurity 28 CAS 13506-76-8
| CAS No. | 13506-76-8 |
| Molecular Formula | C8H7NO4 |
| Molecular Weight | 181.15 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Lenalidomide Impurity 28 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 181.15 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Lenalidomide Impurity 28 (CAS 13506-76-8) is a certified pharmaceutical impurity reference standard with the molecular formula C8H7NO4 and a molecular weight of 181.15 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.
As a certified reference material (CRM), Lenalidomide Impurity 28 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 | C8H7NO4 |
| Molecular Weight | 181.15 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, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 1 |
Related Lenalidomide Standards
- Lenalidomide Impurity 13 (CAS 1975-50-4)
- Lenalidomide Impurity 26 (CAS 65399-18-0)
- Lenalidomide Impurity 19 (CAS 366452-97-3)
- Lenalidomide Impurity 12 (CAS 59382-59-1)
- Lenalidomide Impurity 20 (CAS 62621-09-4)
- Lenalidomide Impurity 21 (CAS 77324-87-9)
- Lenalidomide Impurity 22 (CAS 61940-22-5)
- Lenalidomide Impurity 23 (CAS 24078-21-5)
Recommended Standards
- Dopamine Impurity 3 (CAS 89942-72-3)
- Indobufen Impurity 17 (CAS 104-03-0)
- Tolvaptan Impurity 17 (CAS 1975-51-5)
- 4-Hydroxy-3-Nitroacetophenone (CAS 6322-56-1)
- N-Nitroso Fentanyl Impurity 16 (CAS CATO-C4X-134616)
- Abemaciclib Impurity 103 (CAS CATO-C4X-2937103)
- Rosuvastatin Impurity 100 (CAS CATO-C4X-1169100)
- 1-(3-Isopropyl-1-methyl-1H-pyrazol-5-yl)-N-((1-propyl-1H-pyrazol-5-yl)methyl)methanamine hydrochloride (CAS 1856078-33-5)
- 2,2,2-Trifluoro-1-(isoquinolin-6-yl)ethan-1-one (CAS 1877497-81-8)
- Rivaroxaban impurity 190 (CAS CATO-C4X-1090190)
- 2-Fluoro-5-(2-trifluoromethylphenyl)benzoic acid (CAS 1261772-06-8)
- Candesartan Cilexetil EP Impurity C (CAS 1185255-99-5)
- n-Allyl-2-(3-fluorophenoxy)acetamide (CAS 1090561-25-3)
- Peptide 46 (H-4054.0500) (CAS 192122-40-0)
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