5-bromo-6-hydroxypyridine-3-carbonitrile CAS 19840-44-9
| CAS No. | 19840-44-9 |
| Molecular Formula | C6H3BrN2O |
| Molecular Weight | 199.00 g/mol |
| 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.
5-bromo-6-hydroxypyridine-3-carbonitrile (CAS 19840-44-9) is a high-purity analytical reference standard with the molecular formula C6H3BrN2O and a molecular weight of 199.00 g/mol.
5-bromo-6-hydroxypyridine-3-carbonitrile (C6H3BrN2O) contains an amide group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C6H3BrN2O |
| Molecular Weight | 199.00 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related bromo Standards
- 5-Bromo-4-oxo-1,4-dihydropyridine-3-carbonitrile (CAS 1160923-97-6)
- 5-Bromo-3-hydroxypicolinonitrile (CAS 1160936-51-5)
- 3-Bromo-6-oxo-1,6-dihydropyridine-2-carbonitrile (CAS 1186637-40-0)
- 6-Bromo-5-hydroxypicolinonitrile (CAS 1219843-66-9)
- 2-Bromo-5-isocyanatopyridine (CAS 1260671-10-0)
- 5-Bromo-4-hydroxypicolinonitrile (CAS 1369850-06-5)
- 7-Bromo-[1,3]oxazolo[4,5-b]pyridine (CAS 1429901-88-1)
- 4-Bromo-6-oxo-1,6-dihydropyridine-3-carbonitrile (CAS 1630193-35-9)
Recommended Standards
- 5-Bromo-2-oxo-2,3-dihydropyridine-3-carbonitrile (CAS 405224-22-8)
- 6-Bromo-3-hydroxypicolinonitrile (CAS 727737-00-0)
- 5-Bromo-2,1,3-benzoxadiazole (CAS 51376-06-8)
- 6-Bromooxazolo[5,4-b]pyridine (CAS 886372-90-3)
- 1-(4-Aminophenyl)-3-methyl-1H-pyrazol-5-ol (CAS 313050-25-8)
- 2-(Methylthio)-5-(5-nitrofuran-2-yl)-1,3,4-thiadiazole (CAS 3237-63-6)
- Cyclohexyl(3,5-dimethylphenyl)methanone (CAS 898769-18-1)
- (2S)-4-ethylsulfonylpiperazine-2-carbonitrile (CAS 2306248-23-5)
- tert-Butyl (2R)-2-acetylpyrrolidine-1-carboxylate (CAS 675185-27-0)
- 4-Hydrazinyl-6-(4-methoxyphenyl)-2-methylpyrimidine (CAS 1158280-61-5)
- 5-Chlorobenzofuran-6-ol (CAS 1352507-89-1)
- 2-(3-(tert-Butyl)ureido)-N-(2-chloro-6-methylphenyl)benzo[d]thiazole-6-carboxamide (CAS 225521-80-2)
- tert-Butyl (2-((tert-butoxycarbonyl)oxy)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)carbamate (CAS 2919580-51-9)
- Tirzepatide Impurity 33 (CAS CATO-C4X-324033)
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