Ethyl 2,3-dibromo-5-(difluoromethoxy)phenylacetate CAS 1804936-33-1

Purity 97%+In StockPharmaceutical Standards
CAS No.1804936-33-1
Molecular FormulaC11H10Br2F2O3
Molecular Weight388.00 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 2,3-dibromo-5-(difluoromethoxy)phenylacetate CAS 1804936-33-1 chemical structure

Description

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.

Ethyl 2,3-dibromo-5-(difluoromethoxy)phenylacetate (CAS 1804936-33-1), molecular formula C11H10Br2F2O3 and molecular weight 388.00 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C11H10Br2F2O3, Ethyl 2,3-dibromo-5-(difluoromethoxy)phenylacetate contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 388.00 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

Physical & Chemical Properties

Molecular FormulaC11H10Br2F2O3
Molecular Weight388.00 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1995
Halogen ContentF/Br-containing

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