5-Methyl-2-thienylzinc bromide 0.5 M in Tetrahydrofuran CAS 1233318-32-5

Description

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.

5-Methyl-2-thienylzinc bromide 0.5 M in Tetrahydrofuran (CAS 1233318-32-5), molecular formula C5H5BrSZn and molecular weight 242.47 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a salt form, sulfur-containing functionality, bromine substitution, 5-Methyl-2-thienylzinc bromide 0.5 M in Tetrahydrofuran is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 242.47 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).

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

Why CATO?

• ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
• 130,000+ catalog items in stock, COA supplied with every batch
• Worldwide shipping with full export documentation (HS code guidance available)
• Technical support: +86 18665070610 / Nicole.chen@cato-chem.com