(S)-2-(4-Ethynylphenyl)propanoic acid CAS 2350536-74-0

Description

Compared with other compounds in its class, the molecular weight of 174.20 g/mol gives (S)-2-(4-Ethynylphenyl)propanoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(S)-2-(4-Ethynylphenyl)propanoic acid (CAS 2350536-74-0), molecular formula C11H10O2 and molecular weight 174.20 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, (S)-2-(4-Ethynylphenyl)propanoic acid (C11H10O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 174.20 g/mol, it falls into the medium-molecular-weight range. 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.

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

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