Flurbiprofen Impurity 140 CAS 1531637-33-8

Description

Compared with other compounds in its class, the molecular weight of 302.27 g/mol gives Flurbiprofen Impurity 140 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Flurbiprofen Impurity 140 (CAS 1531637-33-8), a pharmacopoeial impurity reference standard (molecular formula C18H10F4, MW 302.27 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Flurbiprofen Impurity 140 (C18H10F4) contains fluorine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 302.27 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.

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