Ramelteon Impurity 47 CAS CATO-C4X-262247
| CAS No. | CATO-C4X-262247 |
| Molecular Formula | C16H20N2O3 |
| Molecular Weight | 288.34 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 288.34 g/mol gives Ramelteon Impurity 47 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Ramelteon Impurity 47 (CAS CATO-C4X-262247) is a certified pharmaceutical impurity reference standard with the molecular formula C16H20N2O3 and a molecular weight of 288.34 g/mol.
Ramelteon Impurity 47 (C16H20N2O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), Ramelteon Impurity 47 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 | C16H20N2O3 |
| Molecular Weight | 288.34 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Ramelteon Standards
- Ramelteon Impurity 51 (CAS 896736-20-2)
- Ramelteon Metabolite M-II-d3 (Mixture of R and S at the Hydroxy Position) (CAS 1246812-22-5)
- Ramelteon Diol Impurity (CAS 196597-88-3)
- Ramelteon Metabolite M-II (CAS 896736-21-3)
- Ramelteon Impurity 31 (CAS 1204581-50-9)
- Ramelteon Impurity 36 (CAS CATO-C4X-262236)
- Ramelteon Impurity 38 (CAS 1260675-80-6)
- Ramelteon Impurity 62 (CAS 809097-20-8)
Recommended Standards
- Semaglutide impurity 92 (CAS CATO-C4X-222692)
- Primaquine impurity 3 (CAS CATO-C4X-26353)
- Brivaracetam Impurity 201 (CAS CATO-C4X-2007201)
- N-Nitroso Nortilidine (CAS CATO-C4X-30951)
- Progesterone Impurity 58 (CAS 2919563-38-3)
- m-Phenylenediamine Impurity 4 (CAS CATO-C4X-34284)
- Tofacitinib Impurity 114 (CAS CATO-C4X-1079114)
- N-Ethyl-2-(1-imidazolyl)acetamide (CAS 1204921-90-3)
- 2-(Methylthio)benzo[d]oxazole-5-carboxylic acid (CAS 929344-59-2)
- 2-(Difluoromethyl)-6-methoxypyridine (CAS 1805302-02-6)
- Tadalafil Impurity 131 (CAS 209120-51-4)
- Landiolol Impurity 116 (CAS CATO-C4X-2621116)
- 56616-99-0 1H-1,2,4-Triazole, 5-chloro-1-methyl- DTXSID80205192 (CAS 56616-99-0)
- SAMS Peptide (CAS 125911-68-4)
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