5,5'-Di([1,1'-biphenyl]-4-yl)-2,2'-bithiophene CAS 175850-28-9

Description

The occurrence of 5,5'-Di([1,1'-biphenyl]-4-yl)-2,2'-bithiophene is closely related to sulfur-containing functionality, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

5,5'-Di([1,1'-biphenyl]-4-yl)-2,2'-bithiophene (CAS 175850-28-9), molecular formula C32H22S2 and molecular weight 470.65 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 5,5'-Di([1,1'-biphenyl]-4-yl)-2,2'-bithiophene (C32H22S2) contains sulfur-containing functionality, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 22.0, corresponding to approximately 22 ring(s) or double-bond equivalent(s). With a molecular weight of 470.65 g/mol, it falls into the moderately-high-molecular-weight range. 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

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