Formoterol impurity 124 CAS CATO-C4X-1525124

Description

The occurrence of Formoterol impurity 124 is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Formoterol impurity 124 (CAS CATO-C4X-1525124) is a certified pharmaceutical impurity reference standard with the molecular formula C18H23N3O4 and a molecular weight of 345.39 g/mol.

Formoterol impurity 124 (C18H23N3O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

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