3-[N-Acetyl-L-cystein-S-yl] Acetaminophen-d5 Sodium Salt (Major) CAS 1331911-02-4

Description

Compared with other compounds in its class, the molecular weight of 339.35 g/mol gives 3-[N-Acetyl-L-cystein-S-yl] Acetaminophen-d5 Sodium Salt (Major) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3-[N-Acetyl-L-cystein-S-yl] Acetaminophen-d5 Sodium Salt (Major) (CAS 1331911-02-4), molecular formula C13H10D5N2O5SNa and molecular weight 339.35 g/mol, is a CATO reference standard with documented purity and traceability.

3-[N-Acetyl-L-cystein-S-yl] Acetaminophen-d5 Sodium Salt (Major) (C13H10D5N2O5SNa) contains deuterium isotope labeling, a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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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