4-((4'-Nitro-[1,1'-biphenyl]-4-yl)amino)-4-oxobut-2-enoic acid CAS 328540-83-6

Description

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.

4-((4'-Nitro-[1,1'-biphenyl]-4-yl)amino)-4-oxobut-2-enoic acid (CAS 328540-83-6), molecular formula C16H12N2O5 and molecular weight 312.28 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4-((4'-Nitro-[1,1'-biphenyl]-4-yl)amino)-4-oxobut-2-enoic acid (C16H12N2O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. 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 312.28 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

CATO manufactures 4-((4'-Nitro-[1,1'-biphenyl]-4-yl)amino)-4-oxobut-2-enoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

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