2-(4-Fluoro-2-methylphenyl)acetic acid, 97% CAS 407640-40-8

Purity 97%+In StockPharmaceutical Standards
CAS No.407640-40-8
Molecular FormulaC9H9FO2
Molecular Weight168.16 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(4-Fluoro-2-methylphenyl)acetic acid, 97% CAS 407640-40-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 168.16 g/mol gives 2-(4-Fluoro-2-methylphenyl)acetic acid, 97% distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-(4-Fluoro-2-methylphenyl)acetic acid, 97% (CAS 407640-40-8), molecular formula C9H9FO2 and molecular weight 168.16 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C9H9FO2, 2-(4-Fluoro-2-methylphenyl)acetic acid, 97% 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 168.16 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.

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.

Physical & Chemical Properties

Molecular FormulaC9H9FO2
Molecular Weight168.16 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; 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.)2025
Halogen ContentF-containing

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Why CATO?