2-Ethynyl-5-nitrothiophene CAS 74610-87-0

Description

Compared with other compounds in its class, the molecular weight of 153.16 g/mol gives 2-Ethynyl-5-nitrothiophene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 2-Ethynyl-5-nitrothiophene (CAS 74610-87-0), a certified reference material (molecular formula C6H3NO2S, MW 153.16 g/mol) for analytical method development and quality control.

Structurally, 2-Ethynyl-5-nitrothiophene (C6H3NO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 153.16 g/mol, it falls into the medium-molecular-weight range. 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

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