3-n-Octadecylthiophene CAS 104934-54-5

Description

Compared with other compounds in its class, the molecular weight of 336.62 g/mol gives 3-n-Octadecylthiophene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3-n-Octadecylthiophene (CAS 104934-54-5), molecular formula C22H40S and molecular weight 336.62 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to sulfur-containing functionality, 3-n-Octadecylthiophene is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 336.62 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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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