Brexpiprazole Impurity 162 CAS CATO-C4X-1131162
| CAS No. | CATO-C4X-1131162 |
| Molecular Formula | C13H14BrNO2 |
| Molecular Weight | 296.16 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 296.16 g/mol gives Brexpiprazole Impurity 162 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Brexpiprazole Impurity 162 (CAS CATO-C4X-1131162) is a certified pharmaceutical impurity reference standard with the molecular formula C13H14BrNO2 and a molecular weight of 296.16 g/mol.
Structurally, Brexpiprazole Impurity 162 (C13H14BrNO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 296.16 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C13H14BrNO2 |
| Molecular Weight | 296.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Brexpiprazole Standards
- Brexpiprazole Impurity 14 (CAS 203395-59-9)
- Brexpiprazole Impurity 154 (CAS 2514958-62-2)
- Brexpiprazole Impurity 136 (CAS 2657666-89-0)
- Brexpiprazole Impurity 29 (CAS 913614-15-0)
- Brexpiprazole impurity 112 (CAS CATO-C4X-1131112)
- Brexpiprazole Impurity 140 (CAS CATO-C4X-1131140)
- Brexpiprazole Impurity 133 (CAS 1268367-99-2)
- Brexpiprazole Impurity 164 (CAS CATO-C4X-1131164)
Recommended Standards
- 1-(2-(2-Methoxyethoxy)ethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 1185767-91-2)
- 4'-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-[1,1'-biphenyl]-2-ol (CAS 1219741-54-4)
- tert-Butyl 7-bromo-1H-indole-1-carboxylate (CAS 868561-17-5)
- Brimonidine Impurity 13 (CAS 134892-42-5)
- Azilsartan impurity 146 (CAS CATO-C4X-1096146)
- CAS 207283-64-5 (CAS 207283-64-5)
- Cisatracurium Besilate EP Impurity W TFA (CAS CATO-C4X-1850109)
- 7-Nitrochroman-3-one (CAS 944899-63-2)
- (1S,2S)-Ethyl 2-((tert-butoxycarbonyl)amino)cyclopentanecarboxylate (CAS 1375312-86-9)
- 1-(Iodomethyl)-4-(trifluoromethoxy)benzene (CAS 1145780-74-0)
- (E)-2,3-Dibromo-4-oxobut-2-enoic acid (CAS 90994-06-2)
- 3-(4-Fluorobenzoyl)indole (CAS 152807-26-6)
- 2-((4,6-Bis(4-chlorophenyl)-3-cyanopyridin-2-yl)thio)-N-phenylacetamide (CAS 332385-63-4)
- D-Ala21-Tirzepatide (CAS CATO-CPTD788913)
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