3-Bromo-5-methyl-1H-pyrazolo[4,3-b]pyridine CAS 52090-78-5
| CAS No. | 52090-78-5 |
| Molecular Formula | C7H6BrN3 |
| Molecular Weight | 212.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 3-Bromo-5-methyl-1H-pyrazolo[4,3-b]pyridine (CAS 52090-78-5), a certified reference material (molecular formula C7H6BrN3, MW 212.05 g/mol) for analytical method development and quality control.
Owing to a nitrile group, bromine substitution, an aromatic ring system, 3-Bromo-5-methyl-1H-pyrazolo[4,3-b]pyridine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 212.05 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 3-Bromo-5-methyl-1H-pyrazolo[4,3-b]pyridine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H6BrN3 |
| Molecular Weight | 212.05 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.) | 1971 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Bromo Standards
- 6-Bromo-1H-pyrrolo[2,3-b]pyridin-4-amine (CAS 1000340-72-6)
- 6-Bromo-3-methyl-[1,2,3]triazolo[1,5-a]pyridine (CAS 1024741-92-1)
- 4-Bromo-3-methyl-[1,2,3]triazolo[1,5-a]pyridine (CAS 1024741-95-4)
- 8-Bromo-6-methylimidazo[1,2-a]pyrazine (CAS 1025976-69-5)
- 6-Bromo-3-methyl-[1,2,4]triazolo[4,3-a]pyridine (CAS 108281-78-3)
- 6-Bromo-1-methyl-1H-benzo[d][1,2,3]triazole (CAS 1083181-43-4)
- 2-Bromo-7-methylpyrazolo[1,5-a]pyrimidine (CAS 1126-24-5)
- 6-Bromo-2-methylimidazo[1,2-a]pyrazine (CAS 1159811-97-8)
Recommended Standards
- 3-Bromo-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole-5-carbonitrile (CAS 2092235-56-6)
- 3-Bromo-6-methyl-3H-pyrazolo[3,4-b]pyridine (CAS 677033-10-2)
- 3-Bromo-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole-2-carbonitrile (CAS 2091865-86-8)
- 3-Bromo-7-methylimidazo[1,2-a]pyrimidine (CAS 375857-62-8)
- 3-(Tert-butyl)-5-cyanobenzoic acid (CAS 942077-12-5)
- 1-(Perfluorophenyl)-1H-pyrrole (CAS 344452-95-5)
- (1R,2R)-2-aminocycloheptan-1-ol (CAS 260065-70-1)
- 2-(Difluoromethyl)-5-methoxy-3-methylpyridine-4-sulfonyl chloride (CAS 1805151-23-8)
- 2-(2-Bromo-4-methylphenoxy)pyridine-3-carbonitrile (CAS 1021143-01-0)
- 3-(Dimethylamino)-2-phenylacrylonitrile (CAS 18226-50-1)
- 2-Bromo-3-fluorobenzenesulfonyl chloride (CAS 1065076-31-4)
- 3,4-Diethyl-1-methyl-1h-pyrazol-5-amine (CAS 936940-25-9)
- N-Hydroxy-N-phenylfuran-3-carboxamide (CAS 1137-48-0)
- Bax inhibitor peptide V5 (CAS 579492-81-2)
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