5,10,15,20-tetrakis(4-pyridyl)-21<I>H</I>,23<I>H</I>-porphine CAS 16834-13-2

Description

CATO supplies 5,10,15,20-tetrakis(4-pyridyl)-21<I>H</I>,23<I>H</I>-porphine (CAS 16834-13-2), a certified reference material (molecular formula C40H72N8, MW 665.05 g/mol) for analytical method development and quality control.

Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, 5,10,15,20-tetrakis(4-pyridyl)-21<I>H</I>,23<I>H</I>-porphine is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 665.05 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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

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