Opicapone Impurity 74 CAS CATO-C4X-240474
| CAS No. | CATO-C4X-240474 |
| Molecular Formula | C15H12Cl2N4O6 |
| Molecular Weight | 415.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Opicapone Impurity 74 (CAS CATO-C4X-240474) is a certified pharmaceutical impurity reference standard with the molecular formula C15H12Cl2N4O6 and a molecular weight of 415.18 g/mol.
Structurally, Opicapone Impurity 74 (C15H12Cl2N4O6) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 415.18 g/mol, it falls into the moderately-high-molecular-weight range. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C15H12Cl2N4O6 |
| Molecular Weight | 415.18 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Opicapone Standards
- Opicapone Impurity 42 (CAS 1402714-38-8)
- Opicapone Impurity 53 (CAS CATO-C4X-240453)
- Opicapone Impurity 11 (CAS CATO-C4X-240411)
- Opicapone impurity 19 (CAS CATO-C4X-240419)
- Opicapone (CAS 923287-50-7)
- Opicapone Impurity N1 (CAS 1391712-50-7)
- Opicapone-d6 (CAS 923287-50-7(unlabelled))
- Opicapone Impurity 86 (CAS CATO-C4X-240486)
Recommended Standards
- Flusulfamide (CAS 106917-52-6)
- (E)-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}({1-[5-(4-chlorophenyl)furan-2-yl]ethylidene})amine (CAS 400078-96-8)
- Tributyl(5-fluoro-2-methoxyphenyl)stannane (CAS 223432-26-6)
- (E)-3-(1-(2,4-Dichlorobenzyl)-6-(trifluoromethyl)-1H-indazol-3-yl)acrylic acid (CAS 877766-45-5)
- Lidocaine EP Impurity D (CAS 7728-40-7)
- Bevantolol Impurity 27 (CAS CATO-C4X-241127)
- Amlodipine Impurity 77 (CAS 2802443-91-8)
- 2-Chloro-3-methyl-5-(1-propylpiperidin-2-yl)pyridine (CAS 1352503-15-1)
- 2-(2-Chlorophenyl)-5'-fluoro-2'-hydroxyacetophenone (CAS 527751-50-4)
- Methyl 5-(4-hydroxyphenyl)-3-methylisoxazole-4-carboxylate (CAS 2112393-11-8)
- N-(5-(4-Bromophenyl)-1,3,4-thiadiazol-2-yl)-2,4-dimethoxybenzamide (CAS 392243-75-3)
- 2,4-Dichloro-5-(difluoromethoxy)phenol (CAS 1803791-33-4)
- Ethyl 5-amino-2-((4-amino-5-(trifluoromethyl)-4H-1,2,4-triazol-3-yl)thio)benzoate (CAS 1354774-85-8)
- Myelin Basic Protein (85-99) Peptide Antagonist (CAS 444305-16-2)
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