4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(1-o-tolylethyl)-1H-pyrazole CAS 1604036-99-8

Description

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

4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(1-o-tolylethyl)-1H-pyrazole (CAS 1604036-99-8), molecular formula C18H25BN2O2 and molecular weight 312.21 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(1-o-tolylethyl)-1H-pyrazole (C18H25BN2O2) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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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