Opicapone Impurity 79 CAS CATO-C4X-240479
| CAS No. | CATO-C4X-240479 |
| Molecular Formula | C22H13Cl2N5O10 |
| Molecular Weight | 578.27 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Opicapone Impurity 79 (CAS CATO-C4X-240479, C22H13Cl2N5O10) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Opicapone Impurity 79 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 578.27 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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 | C22H13Cl2N5O10 |
| Molecular Weight | 578.27 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Opicapone Standards
- Opicapone Impurity 83 (CAS 1428009-74-8)
- Opicapone Impurity 81 (CAS CATO-C4X-240481)
- Opicapone Impurity 78 (CAS CATO-C4X-240478)
- Opicapone Impurity 6 (CAS CATO-C4X-24046)
- Opicapone Impurity 77 (CAS CATO-C4X-240477)
- Opicapone impurity 15 (CAS CATO-C4X-240415)
- Opicapone Impurity 40 (CAS CATO-C4X-240440)
- Opicapone impurity 29 (CAS CATO-C4X-240429)
Recommended Standards
- 2,4-Dichlorophenyl-3'-methyl-4'-nitrophenyl ether (CAS 42488-57-3)
- 2-((4-Chloro-N-(2,4-dichloro-5-(2-methoxyethoxy)phenyl)phenyl)sulfonamido)-N-(4-chlorophenyl)acetamide (CAS 338967-74-1)
- 2H,2H-Perfluorododecanoic acid (CAS 53826-13-4)
- 2-(N-(2,4-dichloro-5-(2-methoxyethoxy)phenyl)phenylsulfonamido)-N-(3,5-dichlorophenyl)acetamide (CAS 338967-79-6)
- Methotrexate EP Impurity J (CAS 34378-65-9)
- Perindopril Impurity 96 (CAS CATO-C4X-125296)
- Ubidecarenone Impurity 25 (Dihydrocoenzyme Q10) (CAS 992-78-9)
- 1-[Chloro(difluoro)methoxy]-3,5-difluoro-benzene (CAS 1404194-27-9)
- Methyl 3-chloro-4-(methylamino)benzoate (CAS 700834-21-5)
- 4442-85-7 Cyclohexaneethanamine (9CI) Cyclohexaneethylamine (8CI) 2-Cyclohexylethylamine Ethylamine, 2-cyclohexyl- 4-12-00-00133 (Beilstein Handbook Reference) 2-Aminoethylcyclohexane BRN 2689115 Cyclohexaneethylamine EINECS 224-673-7 NSC 44879 NSC 59005 WIN 5522-2 (CAS 4442-85-7)
- (4-Phenoxyphenyl)hydrazine Hydrochloride (CAS 60481-02-9)
- Tert-butyl 4-amino-1-ethyl-1h-pyrazole-3-carboxylate (CAS 1477984-35-2)
- Methyl 2,4-dichloro-6-phenoxypyrimidine-5-carboxylate (CAS 87847-83-4)
- Semaglutide Impurity 9 (CAS CATO-C4X-22269)
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