(1-methyl-1H-pyrazol-3-yl)boronic acid CAS 869973-96-6

Purity 97%+In StockPharmaceutical Standards
CAS No.869973-96-6
Molecular FormulaC4H11BN2O2
Molecular Weight129.95 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(1-methyl-1H-pyrazol-3-yl)boronic acid CAS 869973-96-6 chemical structure

Description

(1-methyl-1H-pyrazol-3-yl)boronic acid (CAS 869973-96-6), molecular formula C4H11BN2O2 and molecular weight 129.95 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, (1-methyl-1H-pyrazol-3-yl)boronic acid (C4H11BN2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 0.5, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 129.95 g/mol, it falls into the low-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.

As a certified reference material (CRM), (1-methyl-1H-pyrazol-3-yl)boronic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC4H11BN2O2
Molecular Weight129.95 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)0.5
CAS Registry Year (est.)1987
Nitrogen Atoms2

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