4-dibutylthiophene CAS 349481-77-2

Purity 97%+In StockPharmaceutical Standards
CAS No.349481-77-2
Molecular FormulaC12H19BrS
Molecular Weight275.25 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-dibutylthiophene CAS 349481-77-2 chemical structure

Description

As a certified reference material (CRM), 4-dibutylthiophene meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

4-dibutylthiophene (CAS 349481-77-2) is a high-purity analytical reference standard with the molecular formula C12H19BrS and a molecular weight of 275.25 g/mol.

Owing to sulfur-containing functionality, bromine substitution, 4-dibutylthiophene is typically white to off-white low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 275.25 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

Physical & Chemical Properties

Molecular FormulaC12H19BrS
Molecular Weight275.25 g/mol
Purity97%+
StorageStore at room temperature, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)2025
Halogen ContentBr-containing
Sulfur Atoms1

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