3-Amino-5-bromo-2-chloropyridin-4-ol hydrochloride CAS 1956331-25-1
| CAS No. | 1956331-25-1 |
| Molecular Formula | C5H4BrClN2O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C5H4BrClN2OHCl, 3-Amino-5-bromo-2-chloropyridin-4-ol hydrochloride contains an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 259.91 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
3-Amino-5-bromo-2-chloropyridin-4-ol hydrochloride (CAS 1956331-25-1) is a high-purity analytical reference standard with the molecular formula C5H4BrClN2OHCl and a molecular weight of 259.91 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C5H4BrClN2O HCl |
| Molecular Weight | 259.91 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 3-Amino-4,6-bis(4-methoxyphenyl)-N-(2-(trifluoromethyl)phenyl)thieno[2,3-b]pyridine-2-carboxamide (CAS 332155-94-9)
- 3-Bromo-4,5-difluorophenol (CAS 1807120-34-8)
- 1-Cyclohexyl-2,4,6-triphenylpyridin-1-ium thiocyanate (CAS 88064-53-3)
- [y-Glu15]-Semaglutide Impurity 134 (CAS CATO-C4X-2226134)
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