Methyl 2-(4-bromo-1-methyl-1H-pyrazol-3-yl)acetate CAS 2091858-06-7
| CAS No. | 2091858-06-7 |
| Molecular Formula | C7H9BrN2O2 |
| Molecular Weight | 233.06 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.
Methyl 2-(4-bromo-1-methyl-1H-pyrazol-3-yl)acetate (CAS 2091858-06-7) is a high-purity analytical reference standard with the molecular formula C7H9BrN2O2 and a molecular weight of 233.06 g/mol.
Based on its molecular formula C7H9BrN2O2, Methyl 2-(4-bromo-1-methyl-1H-pyrazol-3-yl)acetate 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Methyl 2-(4-bromo-1-methyl-1H-pyrazol-3-yl)acetate 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 | 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.) | 1997 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Methyl 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)
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Recommended Standards
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