7-bromo-1-methyl-pyrazolo[4,3-b]pyridine CAS 1823268-58-1
| CAS No. | 1823268-58-1 |
| Molecular Formula | C7H14BrN3 |
| Molecular Weight | 220.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 7-bromo-1-methyl-pyrazolo[4,3-b]pyridine.
7-bromo-1-methyl-pyrazolo[4,3-b]pyridine (CAS 1823268-58-1) is a high-purity analytical reference standard with the molecular formula C7H14BrN3 and a molecular weight of 220.11 g/mol.
The molecular framework of 7-bromo-1-methyl-pyrazolo[4,3-b]pyridine (C7H14BrN3) is characterized by a nitrile group, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
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 | C7H14BrN3 |
| Molecular Weight | 220.11 g/mol |
| 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related bromo Standards
- 4-bromo-1-methyl-1H-pyrazolo[3,4-c]pyridine (CAS 1032943-41-1)
- 1-(5-bromo-2-pyridyl)propan-1-one (CAS 1060812-89-6)
- 6-bromo-2-methyl-imidazo[1,2-a]pyrimidine (CAS 1111638-05-1)
- 2-Bromo-1-(pyrrolidin-1-yl)butan-1-one (CAS 1119450-19-9)
- 6-bromo-1-methyl-1H-pyrazolo[4,3-b]pyridine (CAS 1150617-56-3)
- 3-bromo-1-methyl-pyrazolo[3,4-b]pyridine (CAS 116855-03-9)
- 2-bromo-1-(2-methyl-4-pyridyl)ethanone (CAS 1187785-48-3)
- 4-bromo-1H-indazol-7-amine (CAS 1190319-80-2)
Recommended Standards
- 7-bromoimidazo[1,2-a]pyridin-5-amine (CAS 1822620-44-9)
- 6-bromo-2-methyl-2H-pyrazolo[4,3-b]pyridine (CAS 1897500-19-4)
- 4-(Difluoromethyl)-6-fluoro-3-nitropicolinaldehyde (CAS 1807129-80-1)
- 5-bromo-2-methyl-benzotriazole (CAS 191230-40-7)
- CID 797718 (CAS 370586-05-3)
- 2-(Isopropylamino)-1-(1-oxidothiomorpholino)ethan-1-one (CAS 1248972-21-5)
- (S)-Methyl 2-amino-4-((tert-butoxycarbonyl)amino)butanoate (CAS 125279-44-9)
- Phytomenadione/Vitamin K1 Impurity 131 (CAS CATO-C4X-2207131)
- cis-(3-amino-1-methyl-cyclobutyl)methanol;hydrochloride (CAS 2231665-23-7)
- 1-(Pyridin-4-ylmethyl)-1H-benzo[d]imidazol-2(3H)-one (CAS 114797-97-6)
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