4-bromopyrazolo[1,5-a]pyridine-3-carbonitrile CAS 2092153-80-3
| CAS No. | 2092153-80-3 |
| Molecular Formula | C8H4BrN3 |
| Molecular Weight | 222.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-bromopyrazolo[1,5-a]pyridine-3-carbonitrile is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-bromopyrazolo[1,5-a]pyridine-3-carbonitrile (CAS 2092153-80-3) is a high-purity analytical reference standard with the molecular formula C8H4BrN3 and a molecular weight of 222.04 g/mol.
4-bromopyrazolo[1,5-a]pyridine-3-carbonitrile (C8H4BrN3) contains a nitrogen-containing heterocyclic scaffold, 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.
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 | C8H4BrN3 |
| Molecular Weight | 222.04 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related bromopyrazolo Standards
- 5-Bromopyrazolo[1,5-a]pyridine-3-carbonitrile (CAS 1352900-95-8)
- 3-Bromopyrazolo[1,5-a]pyridine-5-carbonitrile (CAS 1427501-82-3)
- 4-Bromopyrazolo[1,5-a]pyridine-7-carbonitrile (CAS 2412424-07-6)
- 6-bromopyrazolo[1,5-a]pyridin-4-ol (CAS 1207840-22-9)
- 3-Bromopyrazolo[1,5-a]pyrimidine-6-carbonitrile (CAS 1211525-27-7)
- 6-bromopyrazolo[1,5-a]pyridin-2-amine (CAS 1391821-41-2)
- 4-bromopyrazolo[1,5-a]pyridin-2-amine (CAS 1404309-51-8)
- 6-bromopyrazolo[1,5-a]pyridin-3-amine (CAS 1540218-01-6)
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- 3-(2,5-Dimethyl-1H-pyrrol-1-yl)-2-phenylquinazolin-4(3H)-one (CAS 190514-67-1)
- 3-(3-Bromophenyl)-5-methyl-1,2-oxazole-4-carboxylic acid (CAS 954230-35-4)
- 1-((4-(1,3-Dihydroxypropan-2-yl)phenyl)amino)-4,5-dihydroxy-8-nitroanthracene-9,10-dione (CAS 114565-66-1)
- 2-(Methylthio)-1-(o-tolyl)-5-(p-tolyl)-1H-imidazole (CAS 1207045-94-0)
- Methyl 2-(2-imino-5,7-dimethylbenzo[d]thiazol-3(2H)-yl)acetate hydrobromide (CAS 1949816-59-4)
- 3-Fluoro-2-iodobenzonitrile (CAS 916792-62-6)
- Methyl 3-(2,3-dimethoxyphenyl)-3-oxopropanoate (CAS 300840-18-0)
- Semaglutide impurity 25 (CAS CATO-C4X-222625)
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