1H-Pyrazol-3-ylboronic Acid Pinacol Ester CAS 844501-71-9

Purity 97%+In StockPharmaceutical Standards
CAS No.844501-71-9
Molecular FormulaC9H15BN2O2
Molecular Weight194.04 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1H-Pyrazol-3-ylboronic Acid Pinacol Ester CAS 844501-71-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 194.04 g/mol gives 1H-Pyrazol-3-ylboronic Acid Pinacol Ester distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 1H-Pyrazol-3-ylboronic Acid Pinacol Ester (CAS 844501-71-9), a certified reference material (molecular formula C9H15BN2O2, MW 194.04 g/mol) for analytical method development and quality control.

1H-Pyrazol-3-ylboronic Acid Pinacol Ester (C9H15BN2O2) 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.

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.

CATO manufactures 1H-Pyrazol-3-ylboronic Acid Pinacol Ester under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC9H15BN2O2
Molecular Weight194.04 g/mol
AppearanceWhite to pale yellow crystalline powder. (faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.5
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1987
Nitrogen Atoms2

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