Galanthamine Impurity 17 CAS 252869-09-3
| CAS No. | 252869-09-3 |
| Molecular Formula | C17H16BrNO4 |
| Molecular Weight | 378.22 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Galanthamine Impurity 17 (CAS 252869-09-3) is a certified pharmaceutical impurity reference standard with the molecular formula C17H16BrNO4 and a molecular weight of 378.22 g/mol.
Galanthamine Impurity 17 (C17H16BrNO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Galanthamine Impurity 17 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C17H16BrNO4 |
| Molecular Weight | 378.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Galanthamine Standards
- Galanthamine Impurity 26 (4aS,6R,8aS) (CAS CATO-C4X-143526)
- Galanthamine Impurity 30 (CAS CATO-C4X-143530)
- Galanthamine Impurity 34 (CAS CATO-C4X-143534)
- Galanthamine Impurity 33 (CAS CATO-C4X-143533)
- Galanthamine Impurity 29 (4aS,6S,8aS) (CAS CATO-C4X-143529)
- Galanthamine Impurity 31 (CAS CATO-C4X-143531)
- Galanthamine Impurity 38（Benzgalantamine） (CAS 224169-27-1)
- Galanthamine Impurity 42 (4aS,6S,8aR) (CAS CATO-C4X-143542)
Recommended Standards
- 400084-52-8 5M-902 8-[(4-bromophenyl)methyl]-1,3-dimethyl-1H,2H,3H,4H,5H,6H,7H,8H-pyrido[2,3-d]pyrimidine-2,4,7-trione (CAS 400084-52-8)
- Formoterol Impurity 61 (CAS CATO-C4X-152561)
- N-benzyl-2-(5-bromo-4-formyl-2-methoxyphenoxy)acetamide (CAS 692282-64-7)
- Olodaterol Impurity 10 (CAS CATO-C4X-19440)
- Acalabrutinib Impurity 27 (CAS CATO-C4X-305527)
- Modafinil EP Impurity A (CAS 63547-24-0)
- Ponatinib Impurity 36 (CAS CATO-C4X-226936)
- 4-Chloro-2,3,6-trifluoropyridine (CAS 63489-53-2)
- 2-(1H-Imidazol-1-yl)-6-(trifluoromethyl)pyridine, HCl (CAS 1215206-29-3)
- 4-Fluoro-6-methoxy-N-methylpyrimidin-2-amine (CAS 130687-29-5)
- 1-(Tert-butyl) 3-methyl (3R,4S)-4-(((S)-1-phenylethyl)amino)piperidine-1,3-dicarboxylate (CAS 848002-72-2)
- 1-Boc-4-(Cbz-Aminomethylcarbonyl)piperazine (CAS 353495-62-2)
- 4-(3-Phenylpropyl)piperazin-1-amine (CAS 34924-95-3)
- Semaglutide Impurity 18 (CAS 1671100-14-3)
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