Tofacitinib Impurity 54 CAS 6066-82-6

Description

Compared with other compounds in its class, the molecular weight of 115.09 g/mol gives Tofacitinib Impurity 54 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Tofacitinib Impurity 54 (CAS 6066-82-6) is a certified pharmaceutical impurity reference standard with the molecular formula C4H5NO3 and a molecular weight of 115.09 g/mol.

Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Tofacitinib Impurity 54 is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 115.09 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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