Opicapone Impurity 77 CAS CATO-C4X-240477
| CAS No. | CATO-C4X-240477 |
| Molecular Formula | C24H19Cl2N5O12 |
| Molecular Weight | 640.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Opicapone Impurity 77 (CAS CATO-C4X-240477), a pharmacopoeial impurity reference standard (molecular formula C24H19Cl2N5O12, MW 640.34 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Opicapone Impurity 77 (C24H19Cl2N5O12) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 Opicapone Impurity 77 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 | C24H19Cl2N5O12 |
| Molecular Weight | 640.34 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Opicapone Standards
- Opicapone Impurity 6 (CAS CATO-C4X-24046)
- Opicapone Impurity 78 (CAS CATO-C4X-240478)
- Opicapone Impurity 81 (CAS CATO-C4X-240481)
- Opicapone Impurity 83 (CAS 1428009-74-8)
- Opicapone Impurity 79 (CAS CATO-C4X-240479)
- Opicapone impurity 15 (CAS CATO-C4X-240415)
- Opicapone Impurity 40 (CAS CATO-C4X-240440)
- Opicapone impurity 29 (CAS CATO-C4X-240429)
Recommended Standards
- Mono[2-(perfluorooctyl)ethyl] Glucuronide (CAS 864551-34-8)
- (Methanetetrayltetrakis(benzene-4,1-diyl))tetrakis(phosphonic acid) (CAS 1632402-15-3)
- Trifarotene impurity 19 (CAS CATO-C4X-313219)
- 2-{N-[5-(benzyloxy)-2,4-dichlorophenyl]4-methoxybenzenesulfonamido}-N-(3,5-dichlorophenyl)acetamide (CAS 338961-78-7)
- Sofosbuvir Impurity 5 (CAS CATO-C4X-10525)
- Lusutrombopag Impurity 50 (CAS CATO-C4X-208450)
- Etapenem Impurity 42 (CAS CATO-C4X-163343)
- N-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)propane-2-sulfonamide (CAS 1083326-57-1)
- Ethyl 4-(3-carbamoylphenoxy)piperidine-1-carboxylate (CAS 1956322-23-8)
- N-[(6-Chloropyridin-3-yl)methoxy]-2-methoxybenzamide (CAS 866020-44-2)
- Dopamine Impurity 11 (CAS 22568-51-0)
- N-(3-Amino-2-methylphenyl)-2,4-dichlorobenzamide (CAS 926195-94-0)
- 1-(3-Chloroprop-1-en-2-yl)-2-methylbenzene (CAS 445235-56-3)
- [Ser]8-Acetylated Semaglutide (CAS CATO-C4X-2226218)
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