5-(2-Hydroxyethyl)thiophene-2-carboxylic acid CAS 247128-25-2

Description

Compared with other compounds in its class, the molecular weight of 172.20 g/mol gives 5-(2-Hydroxyethyl)thiophene-2-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-(2-Hydroxyethyl)thiophene-2-carboxylic acid (CAS 247128-25-2) is a high-purity analytical reference standard with the molecular formula C7H8O3S and a molecular weight of 172.20 g/mol.

Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 5-(2-Hydroxyethyl)thiophene-2-carboxylic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 172.20 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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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