2-(3-Bromophenyl)-7-chloropyrazolo[1,5-a]pyridine CAS 460079-44-1
| CAS No. | 460079-44-1 |
| Molecular Formula | C13H8BrClN2 |
| Molecular Weight | 307.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(3-Bromophenyl)-7-chloropyrazolo[1,5-a]pyridine (CAS 460079-44-1), molecular formula C13H8BrClN2 and molecular weight 307.57 g/mol, is a CATO reference standard with documented purity and traceability.
2-(3-Bromophenyl)-7-chloropyrazolo[1,5-a]pyridine (C13H8BrClN2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine/bromine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C13H8BrClN2 |
| Molecular Weight | 307.57 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- (5-Bromo-6-chloro-pyridin-3-yl)-carbamic acid tert-butyl ester (CAS 405939-59-5)
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- 2-(6-Bromo-2-chloro-3-ethoxyphenyl)-1,3-dioxolane (CAS 2484889-14-5)
- tert-Butyl (2-bromo-5-chloropyridin-3-yl)carbamate (CAS 1870679-03-0)
- 2-((5-Cyano-2-fluorobenzyl)(methyl)amino)-N,N-dimethylacetamide (CAS 1096302-76-9)
- 2-((((1-(2,2,2-Trifluoroethyl)-1H-pyrazol-5-yl)methyl)amino)methyl)phenol hydrochloride (CAS 1856018-82-0)
- 2-(O-tolylamino)acetohydrazide (CAS 112255-66-0)
- (6-(Trifluoromethyl)imidazo[1,2-a]pyrimidin-3-yl)methanamine (CAS 944906-60-9)
- 3-Ethoxybenzo[d]isoxazol-6-ol (CAS 439085-76-4)
- 1-(1-Naphthyl)cyclopentanemethanamine (CAS 59725-72-3)
- N1-{2-[(2-Aminophenyl)amino]ethyl}benzene-1,2-diamine (CAS 16825-43-7)
- 4-Chloro-N-isobutylbenzamide (CAS 7461-33-8)
- 3-Ethyl-1-methyl-5-propoxy-1h-pyrazol-4-amine (CAS 1479352-48-1)
- Human glucagon CRS (CAS 9007-92-5)
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