3-Ethyl-5-fluoro-1H-indole-2-carboxylic acid CAS 169674-67-3

Purity 97%+In StockPharmaceutical Standards
CAS No.169674-67-3
Molecular FormulaC11H10FNO2
Molecular Weight207.20 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Ethyl-5-fluoro-1H-indole-2-carboxylic acid CAS 169674-67-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 207.20 g/mol gives 3-Ethyl-5-fluoro-1H-indole-2-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3-Ethyl-5-fluoro-1H-indole-2-carboxylic acid (CAS 169674-67-3) is a high-purity analytical reference standard with the molecular formula C11H10FNO2 and a molecular weight of 207.20 g/mol.

Based on its molecular formula C11H10FNO2, 3-Ethyl-5-fluoro-1H-indole-2-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 207.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).

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), 3-Ethyl-5-fluoro-1H-indole-2-carboxylic acid 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 FormulaC11H10FNO2
Molecular Weight207.20 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2005
Halogen ContentF-containing
Nitrogen Atoms1

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