5-Bromo-1-methyl-1H-pyrazolo[4,3-b]pyridine CAS 2219366-71-7
| CAS No. | 2219366-71-7 |
| Molecular Formula | C7H6BrN3 |
| Molecular Weight | 212.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
5-Bromo-1-methyl-1H-pyrazolo[4,3-b]pyridine (CAS 2219366-71-7), molecular formula C7H6BrN3 and molecular weight 212.05 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, bromine substitution, an aromatic ring system, 5-Bromo-1-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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 5-Bromo-1-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.) | 1998 |
| 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
- 5-Bromo-1-methyl-1H-pyrazolo[3,4-b]pyridine (CAS 887115-56-2)
- 5-Bromo-2-methyl-3H-imidazo[4,5-b]pyridine (CAS 219762-28-4)
- 5-Bromo-1-methyl-1H-benzo[d][1,2,3]triazole, 97% (CAS 944718-31-4)
- 5-Bromo-3-methyl-1H-pyrazolo[3,4-b]pyridine (CAS 885223-65-4)
- 2-Chloro-4,6-dimethylpyrimidine (CAS 4472-44-0)
- 3-[4-(2-Methylbenzoyl)-1-piperazinyl]propanoic acid hydrochloride (CAS 1211511-84-0)
- 2-Chloro-3,5-difluorobenzotrifluoride (CAS 1261733-98-5)
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-methylpentanoic acid (CAS 2250198-69-5)
- 2,6-Dichloro-3-methoxyphenol (CAS 86607-60-5)
- 2-((3-Methoxybenzyl)thio)-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridine-3-carbonitrile (CAS 445382-42-3)
- 5-(Methoxymethyl)-4-[(morpholinoamino)methylene]-2,4-dihydro-3H-pyrazol-3-one (CAS 240799-70-6)
- 4-Isopropyloxazol-5(4H)-one (CAS 4526-83-4)
- 4-Amino-6,6-dimethyl-5,6-dihydro-1,3,5-triazine-2(1H)-thione (CAS 75956-86-4)
- Tirzepatide Impurity 17 (CAS CATO-C4X-324017)
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