Aripiprazole Impurity 67 CAS CATO-C4X-100867
| CAS No. | CATO-C4X-100867 |
| Molecular Formula | C17H23Br2NO2 |
| Molecular Weight | 433.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Aripiprazole Impurity 67 (C17H23Br2NO2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 433.18 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Aripiprazole Impurity 67 (CAS CATO-C4X-100867) is a certified pharmaceutical impurity reference standard with the molecular formula C17H23Br2NO2 and a molecular weight of 433.18 g/mol.
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 | C17H23Br2NO2 |
| Molecular Weight | 433.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Aripiprazole Standards
- Aripiprazole Impurity 85 (CAS CATO-C4X-100885)
- Aripiprazole Impurity N17 (CAS 1076199-56-8)
- Aripiprazole EP Impurity E (CAS 129722-25-4)
- Aripiprazole (CAS 129722-12-9)
- Aripiprazole Impurity 44 (CAS 203395-78-2)
- Aripiprazole Impurity 57 (CAS 1797983-65-3)
- Aripiprazole Impurity 93 (CAS CATO-C4X-100893)
- Aripiprazole 3,4-Dichloro Analog (CAS 203395-75-9)
Recommended Standards
- 1-{[2,5-Bis(tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-3-yl]carbonyl}pyrrolidine (CAS 2377607-12-8)
- 2-Iodo-2-3-O-isopropylideneadenosine (CAS 141018-25-9)
- Methyl 5-[2-amino-4-(trifluoromethyl)pyrimidin-5-yl]-3-(2,6-dichlorophenyl)-1,2-oxazole-4-carboxylate (CAS 338966-75-9)
- DDMS (CAS 206052-03-1)
- Fluticasone Impurity 79 (CAS CATO-C4X-165079)
- Nifuratel Impurity 8 (CAS 25517-72-0)
- Empagliflozin impurity 199 (CAS CATO-C4X-1065199)
- Methyl 2-(3,4-dichlorophenyl)-4H-furo[3,2-b]pyrrole-5-carboxylate (CAS 164667-44-1)
- 4-Bromo-1-(2,4-dichlorobenzyl)-1H-pyrazol-3-aminehydrochloride (CAS 1332531-42-6)
- 3-(4-(4-Chlorobenzyl)piperazin-1-yl)propanoic acid (CAS 874814-58-1)
- 3-(2-Aminoethyl)-4,6-dimethylindolin-2-one (CAS 1342993-00-3)
- 5-(Benzyloxy)-2-ethyl-4-methylpyrimidine (CAS 1369766-63-1)
- 5-(3-Chloro-2-fluorophenoxy)pentanenitrile (CAS 1443342-58-2)
- Calcitonin N-Terminal Flanking Peptide (human) (CAS 118277-01-3)
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