(2,3,5,6-Tetrafluoro-phenoxy)-acetic acid ethyl ester CAS 14742-38-2

Purity 97%+In StockPharmaceutical Standards
CAS No.14742-38-2
Molecular FormulaC10H8F4O3
Molecular Weight252.16 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(2,3,5,6-Tetrafluoro-phenoxy)-acetic acid ethyl ester CAS 14742-38-2 chemical structure

Description

The occurrence of (2,3,5,6-Tetrafluoro-phenoxy)-acetic acid ethyl ester is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

(2,3,5,6-Tetrafluoro-phenoxy)-acetic acid ethyl ester (CAS 14742-38-2), molecular formula C10H8F4O3 and molecular weight 252.16 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C10H8F4O3, (2,3,5,6-Tetrafluoro-phenoxy)-acetic acid ethyl ester contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 252.16 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).

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.

As a certified reference material (CRM), (2,3,5,6-Tetrafluoro-phenoxy)-acetic acid ethyl ester 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 FormulaC10H8F4O3
Molecular Weight252.16 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, keep tightly closed to prevent evaporation
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.)1961
Halogen ContentF-containing

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