4-fluorothieno[2,3-b]thiophene-5-carbaldehyde CAS 2824112-89-0

Description

Compared with other compounds in its class, the molecular weight of 186.23 g/mol gives 4-fluorothieno[2,3-b]thiophene-5-carbaldehyde distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-fluorothieno[2,3-b]thiophene-5-carbaldehyde (CAS 2824112-89-0), molecular formula C7H3FOS2 and molecular weight 186.23 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4-fluorothieno[2,3-b]thiophene-5-carbaldehyde (C7H3FOS2) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution, 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 186.23 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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