5-(2-Hydroxyethyl)thiophene-2-carbaldehyde CAS 131202-63-6

Purity 97%+In StockPharmaceutical Standards
CAS No.131202-63-6
Molecular FormulaC7H8O2S
Molecular Weight156.20 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-(2-Hydroxyethyl)thiophene-2-carbaldehyde CAS 131202-63-6 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 156.20 g/mol gives 5-(2-Hydroxyethyl)thiophene-2-carbaldehyde distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-(2-Hydroxyethyl)thiophene-2-carbaldehyde (CAS 131202-63-6) is a high-purity analytical reference standard with the molecular formula C7H8O2S and a molecular weight of 156.20 g/mol.

5-(2-Hydroxyethyl)thiophene-2-carbaldehyde (C7H8O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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

Molecular FormulaC7H8O2S
Molecular Weight156.20 g/mol
Purity97%+
StorageStore at 2-8°C
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1994
Sulfur Atoms1

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