3-(4-Bromo-3-methyl-1h-pyrazol-1-yl)propanoic acid CAS 956824-07-0
| CAS No. | 956824-07-0 |
| Molecular Formula | C7H9BrN2O2 |
| Molecular Weight | 233.06 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.
CATO supplies 3-(4-Bromo-3-methyl-1h-pyrazol-1-yl)propanoic acid (CAS 956824-07-0), a certified reference material (molecular formula C7H9BrN2O2, MW 233.06 g/mol) for analytical method development and quality control.
Based on its molecular formula C7H9BrN2O2, 3-(4-Bromo-3-methyl-1h-pyrazol-1-yl)propanoic acid contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 233.06 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C7H9BrN2O2 |
| Molecular Weight | 233.06 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 sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- Methyl 2-(4-bromo-1h-pyrazol-1-yl)propanoate (CAS 1005566-07-3)
- 2-(4-bromo-1H-pyrazol-1-yl)butanoic acid (CAS 1005697-69-7)
- 3-(4-Bromo-1-methyl-1H-pyrazol-3-yl)propanoic acid (CAS 1006440-27-2)
- 3-(4-Bromo-1-methyl-1h-pyrazol-5-yl)propanoic acid (CAS 1006440-31-8)
- 4-Bromo-1-(propan-2-yl)-1h-pyrazole-3-carboxylic acid (CAS 1006451-37-1)
- 4-Bromo-1-propyl-1h-pyrazole-5-carboxylic acid (CAS 1006457-27-7)
- 4-Bromo-1-(propan-2-yl)-1H-pyrazole-5-carboxylic acid (CAS 1006493-98-6)
- Methyl 3-(4-bromo-1H-pyrazol-1-yl)propanoate (CAS 1007517-46-5)
Recommended Standards
- 3-(4-Bromo-1h-pyrazol-1-yl)-2-methylpropanoic acid (CAS 925607-95-0)
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- 2-Bromoquinoline-4-carbonitrile (CAS 95104-24-8)
- 3-Bromo-2,5-dimethoxyphenol (CAS 202735-34-0)
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- 2-Hydrazino-5-nitrobenzoic acid (CAS 185556-56-3)
- (s)-1-Methyl-3-(piperidin-3-yl)-1,3-dihydro-2h-benzo[d]imidazol-2-one hydrochloride (CAS 2680615-69-2)
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