(4R,5S)-4-Hydroxy-1,5-dimethylpyrazolidin-3-one CAS 213621-60-4

Purity 97%+In StockPharmaceutical Standards
CAS No.213621-60-4
Molecular FormulaC5H10N2O2
Molecular Weight130.15 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(4R,5S)-4-Hydroxy-1,5-dimethylpyrazolidin-3-one CAS 213621-60-4 chemical structure

Description

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.

(4R,5S)-4-Hydroxy-1,5-dimethylpyrazolidin-3-one (CAS 213621-60-4) is a high-purity analytical reference standard with the molecular formula C5H10N2O2 and a molecular weight of 130.15 g/mol.

(4R,5S)-4-Hydroxy-1,5-dimethylpyrazolidin-3-one (C5H10N2O2) contains an amino-acid-derived structure, an amide 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.

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

Molecular FormulaC5H10N2O2
Molecular Weight130.15 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)2018
Nitrogen Atoms2

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