Ramelteon Impurity O CAS 196597-81-6
| CAS No. | 196597-81-6 |
| Molecular Formula | C13H17NO |
| Molecular Weight | 203.28 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ramelteon Impurity O.
As a process- or degradation-related impurity, Ramelteon Impurity O (CAS 196597-81-6, C13H17NO) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Ramelteon Impurity O (C13H17NO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures Ramelteon Impurity O under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H17NO |
| Molecular Weight | 203.28 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2013 |
| Nitrogen Atoms | 1 |
Related Ramelteon Standards
- Ramelteon Impurity 5 (CAS 448964-37-2)
- Ramelteon Impurity C01 (CAS 752184-07-9)
- (E)-Ramelteon Impurity 11 (CAS 196597-61-2)
- Ramelteon Imputiry 17 (CAS 1092484-10-0)
- Ramelteon Impurity 6（Cis-trans isomerism mixture） (CAS CATO-C4X-26226)
- Ramelteon Impurity 13 (CAS 1217272-33-7)
- Ramelteon Impurity 56 (CAS 1185516-79-3)
- Ramelteon Impurity C8 (CAS 196597-79-2)
Recommended Standards
- (S)-2-(1-Methoxybut-3-en-2-yl)isoindoline (CAS 1956435-96-3)
- (1-Benzyl-1,2,5,6-tetrahydropyridin-3-yl)methanol (CAS 244267-39-8)
- (e)-3-(4-(Diethylamino)phenyl)acrylaldehyde (CAS 194099-39-3)
- (2-(tert-Butyl)-1H-indol-3-yl)methanol (CAS 773871-41-3)
- Selegiline Impurity 4 (E-Isomer) (CAS CATO-C4X-19164)
- Isavuconazole Impurity 139 (CAS CATO-C4X-1236139)
- Cyclophosphamide EP Impurity D (CAS 158401-52-6)
- ditert-butyl (2S)-2-(cyanomethyl)piperazine-1,4-dicarboxylate (CAS 1242267-77-1)
- Tert-butyl (S)-3-(1-aminoethyl)azetidine-1-carboxylate (CAS 2137058-21-8)
- N-{4-[(2-Bromoacetyl)amino]phenyl}-4-(tert-butyl)benzamide (CAS 886014-23-9)
- PNU 37883 Hydrochloride (CAS 57568-80-6)
- Ethyl 5-ethyl-3-methyl-1H-pyrrole-2-carboxylate (CAS 40480-99-7)
- 4-Chloro-5-methyl-2-propylpyrimidine (CAS 1708288-56-5)
- D-Ala18-Tirzepatide (CAS CATO-CPTD788916)
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