Sodium 4-butyl-3,5-dioxo-1,2-diphenylpyrazolidin-4-ide CAS 129-18-0

Description

Compared with other compounds in its class, the molecular weight of 330.36 g/mol gives Sodium 4-butyl-3,5-dioxo-1,2-diphenylpyrazolidin-4-ide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Sodium 4-butyl-3,5-dioxo-1,2-diphenylpyrazolidin-4-ide (CAS 129-18-0), molecular formula C19H19N2O2Na and molecular weight 330.36 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Sodium 4-butyl-3,5-dioxo-1,2-diphenylpyrazolidin-4-ide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 330.36 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).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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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