1-(Cyclopropylsulfonyl)-4-pyrazoleboronic acid pinacol ester, 97% CAS 1612172-62-9

Purity 97%+In StockPharmaceutical Standards
CAS No.1612172-62-9
Molecular FormulaC12H19BN2O4S
Molecular Weight298.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-(Cyclopropylsulfonyl)-4-pyrazoleboronic acid pinacol ester, 97% CAS 1612172-62-9 chemical structure

Description

CATO supplies 1-(Cyclopropylsulfonyl)-4-pyrazoleboronic acid pinacol ester, 97% (CAS 1612172-62-9), a certified reference material (molecular formula C12H19BN2O4S, MW 298.17 g/mol) for analytical method development and quality control.

Structurally, 1-(Cyclopropylsulfonyl)-4-pyrazoleboronic acid pinacol ester, 97% (C12H19BN2O4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.5, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 298.17 g/mol, it falls into the medium-molecular-weight range. 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.

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 FormulaC12H19BN2O4S
Molecular Weight298.17 g/mol
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)4.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1993
Nitrogen Atoms2
Sulfur Atoms1

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