Ropinirole Impurity 5 CAS CATO-C4X-17455
| CAS No. | CATO-C4X-17455 |
| Molecular Formula | C33H48N4O2 |
| Molecular Weight | 532.76 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Ropinirole Impurity 5 (CAS CATO-C4X-17455) is a certified pharmaceutical impurity reference standard with the molecular formula C33H48N4O2 and a molecular weight of 532.76 g/mol.
The molecular framework of Ropinirole Impurity 5 (C33H48N4O2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. 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. 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.
Physical & Chemical Properties
| Molecular Formula | C33H48N4O2 |
| Molecular Weight | 532.76 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Ropinirole Standards
- Ropinirole Impurity 2 (CAS 1800102-50-4)
- Ropinirole Impurity 7 (CAS CATO-C4X-17457)
- Ropinirole Impurity 1 (CAS 91374-24-2)
- Ropinirole Tosyl Derivative (CAS 139122-20-6)
- Ropinirole Hydrochloride EP Impurity C (CAS 784110-47-0)
- Ropinirole Impurity 24 (CAS 1027600-42-5)
- Ropinirole EP Impurity H (CAS CATO-C4X-17458)
- Ropinirole Impurity N55 (CAS 1797132-03-6)
Recommended Standards
- 4-(3-(2-Aminoethyl)ureido)-N-methyl-N-(1,1,4,4,5,5,8,8-octamethyl-1,2,3,4,5,6,7,8-octahydroanthracen-9-yl)benzamide (CAS CATO-C3D-262695)
- Obeticholic Acid Impurity 22 (CAS CATO-C4X-115322)
- 1,4,7,10-Tetrabenzyl-1,4,7,10-tetraazacyclododecane (CAS 18084-64-5)
- 1,1'-Didodecyl-[3,3'-bipyrrolidine]-2,2',5,5'-tetraone (CAS 142681-02-5)
- Sitafloxacin Isomer Impurity 7(SSS) HCl (CAS CATO-C4X-115562)
- Venetoclax Impurity 46 (CAS CATO-C4X-249546)
- Edaravone Impurity 12 (CAS 2061958-41-4)
- Phenyldichlorosilane (CAS 1631-84-1)
- N-Methylphenethylamine (CAS 589-08-2)
- 5,6,7,8-Tetrahydro-5,8-methanoisoquinoline (CAS 105275-30-7)
- 2,2'-Bis(4-chlorophenyl)-5,5'-dimethyl-1',2'-dihydro-2H,3'H-[3,4'-bipyrazol]-3'-one (CAS 114658-03-6)
- Methyl 2,2-dimethyl-3-(2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)propanoate (CAS 1353502-36-9)
- 2-(5-(3,5-Dimethylphenyl)-1,3,4-oxadiazol-2-yl)benzoic acid (CAS 56894-47-4)
- Gastrin Tetrapeptide (CAS 1947-37-1)
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