Paclitaxel-d5 CAS 1129540-33-5

Description

Compared with other compounds in its class, the molecular weight of 858.94 g/mol gives Paclitaxel-d5 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Paclitaxel-d5 (CAS 1129540-33-5), molecular formula C47H46D5NO14 and molecular weight 858.94 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to deuterium isotope labeling, a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Paclitaxel-d5 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 858.94 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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