(2R,3R,4R,5R)-2-(Acetoxymethyl)-5-(4-thioxo-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-1-yl)tetrahydrofuran-3,4-diyl diacetate CAS 64372-70-9

Description

(2R,3R,4R,5R)-2-(Acetoxymethyl)-5-(4-thioxo-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-1-yl)tetrahydrofuran-3,4-diyl diacetate (CAS 64372-70-9), molecular formula C16H18N4O7S and molecular weight 410.40 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of (2R,3R,4R,5R)-2-(Acetoxymethyl)-5-(4-thioxo-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-1-yl)tetrahydrofuran-3,4-diyl diacetate (C16H18N4O7S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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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