Ethyl 2-(4-bromo-3-(difluoromethyl)-5-methyl-1h-pyrazol-1-yl)acetate CAS 512809-71-1
| CAS No. | 512809-71-1 |
| Molecular Formula | C9H11BrF2N2O2 |
| Molecular Weight | 297.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 2-(4-bromo-3-(difluoromethyl)-5-methyl-1h-pyrazol-1-yl)acetate (CAS 512809-71-1) is a high-purity analytical reference standard with the molecular formula C9H11BrF2N2O2 and a molecular weight of 297.10 g/mol.
Ethyl 2-(4-bromo-3-(difluoromethyl)-5-methyl-1h-pyrazol-1-yl)acetate (C9H11BrF2N2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/bromine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Ethyl 2-(4-bromo-3-(difluoromethyl)-5-methyl-1h-pyrazol-1-yl)acetate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H11BrF2N2O2 |
| Molecular Weight | 297.10 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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.) | 1984 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 2 |
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