Ramelteon Impurity 4 CAS CATO-C4X-26224
| CAS No. | CATO-C4X-26224 |
| Molecular Formula | C29H35NO3 |
| Molecular Weight | 445.59 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.
As a process- or degradation-related impurity, Ramelteon Impurity 4 (CAS CATO-C4X-26224, C29H35NO3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C29H35NO3, Ramelteon Impurity 4 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 445.59 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).
As a certified reference material (CRM), Ramelteon Impurity 4 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 | C29H35NO3 |
| Molecular Weight | 445.59 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Ramelteon Standards
- Ramelteon RC 8 (CAS 1246820-32-5)
- Ramelteon Impurity 19 (CAS CATO-C4X-262219)
- Ramelteon Impurity 29 (CAS CATO-C4X-262229)
- Ramelteon Impurity 8 (CAS CATO-C4X-26228)
- Ramelteon Dimer Impurity (CAS 1365920-38-2)
- Ramelteon Impurity 39 (CAS CATO-C4X-262239)
- Ramelteon Impurity 22 (CAS 880152-63-6)
- Ramelteon Impurity 35 (CAS CATO-C4X-262235)
Recommended Standards
- Mifepristone N-Oxide (CAS 91934-98-4)
- Metopimazine (CAS 14008-44-7)
- Hydroxy Mifepristone (CAS CATO-C4X-12168)
- 11-(3-Bromopropyl)tricosane (CAS 1562171-25-8)
- Lenalidomide Impurity 20 (CAS 62621-09-4)
- Miconazole EP Impurity H (CAS 181931-30-6)
- Tafluprost Impurity 29 (CAS CATO-C4X-216329)
- Meropenem Impurity 58 (CAS CATO-C4X-130958)
- 7-Chloro-1-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)dibenzofuran (CAS 2140871-50-5)
- 4-Amino-1-isopropyl-1H-imidazole-5-carboxamide (CAS 1708263-50-6)
- Acetic acid 3-buten-1-yl ester (CAS 1576-84-7)
- CAS 27818-78-6 (CAS 27818-78-6)
- tert-butyl 3-ethynyl-3-hydroxypyrrolidine-1-carboxylate (CAS 275387-76-3)
- Semaglutide Impurity 7 (CAS CATO-C4X-22267)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com