Ammoxetine Impurity 2 CAS CATO-C4X-33572
| CAS No. | CATO-C4X-33572 |
| Molecular Formula | C7H6BrFO2 |
| Molecular Weight | 221.02 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.
Ammoxetine Impurity 2 (CAS CATO-C4X-33572) is a certified pharmaceutical impurity reference standard with the molecular formula C7H6BrFO2 and a molecular weight of 221.02 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system, Ammoxetine Impurity 2 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 221.02 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C7H6BrFO2 |
| Molecular Weight | 221.02 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | ＞95% |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F/Br-containing |
Related Ammoxetine Standards
- Ammoxetine Impurity 15 (CAS CATO-C4X-335715)
- Ammoxetine Impurity 25 (CAS CATO-C4X-224425)
- Ammoxetine Impurity 5 (CAS CATO-C4X-33575)
- Ammoxetine Impurity 13 (CAS CATO-C4X-335713)
- Ammoxetine Impurity 4 (CAS CATO-C4X-33574)
- Ammoxetine Impurity 1 (CAS CATO-C4X-33571)
- Ammoxetine Impurity 11 (CAS CATO-C4X-335711)
- Ammoxetine Impurity 12 (CAS CATO-C4X-335712)
Recommended Standards
- 2-Bromo-1,4-dimethyl-5-nitro-1H-imidazole (CAS 105983-47-9)
- N,N′-Bis(2-chloroethyl)phosphorodiamidic acid (CAS 31645-39-3)
- 3-Amino-5-bromo-6-fluoro-1-methylpyridin-2(1H)-one (CAS 2795135-40-7)
- 5-Methyl-5-nitro-2-phenyl-1,3,2-dioxaborinane (CAS 4208-98-4)
- Favipiravir Impurity 19 (CAS 1257072-34-6)
- Omadacycline impurity 18 (CAS CATO-C4X-285718)
- Phytomenadione/Vitamin K1 Impurity 110 (CAS CATO-C4X-2207110)
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- 1-(3-Fluorobenzyl)-1H-pyrazol-4-amine hydrochloride (CAS 1184970-69-1)
- (6-(Benzylthio)-4-methylpyridin-3-yl)(phenyl)methanone (CAS 1355231-52-5)
- 1-(2-(2-Methoxyethoxy)ethyl)-4-methyl-1h-pyrazol-3-amine (CAS 1339055-74-1)
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- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3,6-dichlorobenzoic acid (CAS 1691057-24-5)
- 103244-41-3 Insulin-like Growth Factor-II fragment 33-40 Ser-Arg-Val-Ser-Arg-Arg-Ser-Arg (CAS 103244-41-3)
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