4-bromo-Pyridine hydrobromide (1:1) CAS 74129-11-6
| CAS No. | 74129-11-6 |
| Molecular Formula | C5H4BrN |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| 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.
4-bromo-Pyridine hydrobromide (1:1) (CAS 74129-11-6) is a high-purity analytical reference standard with the molecular formula C5H4BrNHBr and a molecular weight of 238.91 g/mol.
4-bromo-Pyridine hydrobromide (1:1) (C5H4BrNHBr) contains a nitrile group, bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H4BrN HBr |
| Molecular Weight | 238.91 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 methanol, acetonitrile, DMSO |
| 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.) | 1978 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related bromo Standards
- 4,9-Bis(5-bromo-2-thienyl)-6,7-bis[4-[(2-ethylhexyl)oxy]phenyl][1,2,5]thiadiazolo[3,4-g]quinoxaline (CAS 1000000-25-8)
- 14-Bromo-1-tetradecyne (CAS 1000014-24-3)
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Recommended Standards
- (2-Isocyanatoethoxy)trimethylsilane (CAS 22053-22-1)
- 1-Benzyl-5-(5-sulfanyl-1,3,4-oxadiazol-2-yl)-1,2-dihydropyridin-2-one (CAS 242472-14-6)
- (5-Bromo-2-(trifluoromethoxy)phenyl)(pyridin-4-yl)methanone (CAS 1261805-90-6)
- 6-Amino-2,2-dimethylchroman-4-one (CAS 186774-62-9)
- 4-Allyloxy-1-benzyl-1H-pyrazole (CAS 1326316-19-1)
- 3-Amino-1-(2,2-dimethylcyclopropyl)pyridin-2(1H)-one (CAS 2792155-21-4)
- ([2-(Cyclopropylamino)-2-oxoethyl]thio)-acetic acid (CAS 904786-03-4)
- (4-Methoxy-3-((4-methylpiperazin-1-yl)sulfonyl)phenyl)boronic acid (CAS 1704080-99-8)
- Methyl 4-ethynyl-2-fluorobenzoate (CAS 692277-73-9)
- Autocamtide-2-Related Inhibitory Peptide TFA (CAS 167114-91-2（free base）)
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