1,1'-(Carbonylbis(4,1-phenylene))bis(3-methyl-1H-imidazol-3-ium) iodide CAS 318949-46-1

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1,1'-(Carbonylbis(4,1-phenylene))bis(3-methyl-1H-imidazol-3-ium) iodide.

CATO supplies 1,1'-(Carbonylbis(4,1-phenylene))bis(3-methyl-1H-imidazol-3-ium) iodide (CAS 318949-46-1), a certified reference material (molecular formula C21H20N4OI, MW 471.32 g/mol) for analytical method development and quality control.

The molecular framework of 1,1'-(Carbonylbis(4,1-phenylene))bis(3-methyl-1H-imidazol-3-ium) iodide (C21H20N4OI) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, iodine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.

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