3-Bromo-4-chloro-1-methyl-1H-pyrazolo[4,3-c]pyridine CAS 1782330-22-6
| CAS No. | 1782330-22-6 |
| Molecular Formula | C7H5BrClN3 |
| Molecular Weight | 246.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Bromo-4-chloro-1-methyl-1H-pyrazolo[4,3-c]pyridine (CAS 1782330-22-6), molecular formula C7H5BrClN3 and molecular weight 246.49 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H5BrClN3, 3-Bromo-4-chloro-1-methyl-1H-pyrazolo[4,3-c]pyridine contains a nitrile group, chlorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 246.49 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 3-Bromo-4-chloro-1-methyl-1H-pyrazolo[4,3-c]pyridine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H5BrClN3 |
| Molecular Weight | 246.49 g/mol |
| Appearance | Off-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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 7-Bromo-4-chloro-2-methylpyrrolo[2,1-f][1,2,4]triazine (CAS 1781760-85-7)
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- 3-Bromo-6-chloro-1-methyl-1H-pyrazolo[3,4-b]pyridine (CAS 1781008-16-9)
- 3-Bromo-5-chloro-2-methylpyrazolo[1,5-a]pyrimidine (CAS 1785626-91-6)
- (3-Ethoxypyridin-4-yl)boronic acid (CAS 1310384-04-3)
- Crisaborole-d4 (CAS CATO-C4X-202134)
- 2-(6-Bromopyridin-3-yl)-1,1,1,3,3,3-hexafluoropropan-2-ol (CAS 1446407-06-2)
- 1026080-33-0 4-[5-(4-chlorophenyl)-1H-pyrazol-3-yl]-1-[2,6-dinitro-4-(trifluoromethyl)phenyl]piperidine KS-00003GOW (CAS 1026080-33-0)
- Vibegron Impurity 18 (CAS 1437235-48-7)
- (1-Methyl-1H-indazol-5-yl)methanol (CAS 1092961-11-9)
- 1-(2-Fluorophenyl)-2,2-dimethylcyclopropane-1-carboxylic acid (CAS 915923-90-9)
- 4-Phenyl-3-{1-[4-(trifluoromethoxy)benzoyl]piperidin-4-yl}-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775532-51-8)
- 3-((Diethylamino)methyl)-2,4-dihydroxybenzaldehyde (CAS 384823-61-4)
- Liraglutide (CAS 204656-20-2)
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