3,5-Dimethylpyrazole-4-boronic acid, pinacol ester

3,5-二甲基吡唑-4-硼酸频哪醇酯

Also known as: 3,5-Dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole, 3,5-Dimethyl-1H-pyrazole-4-boronic acid, pinacol ester, 3,5-Dimethylpyrazole-4-boronic acid, pinacol ester (97%), 3,5-Dimethyl-4-pyrazoleboronic acid pinacol ester, 1H-Pyrazole, 3,5-dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-

3,5-Dimethylpyrazole-4-boronic acid, pinacol ester (CAS 857530-80-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H19BN2O2 and a molecular weight of 222.092 g/mol. It is also known as 3,5-Dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole, 3,5-Dimethyl-1H-pyrazole-4-boronic acid, pinacol ester and 3,5-Dimethylpyrazole-4-boronic acid, pinacol ester (97%). Key properties include a melting point of 163-168ºC(lit.), a boiling point of 364.5±42.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 174.3±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
857530-80-4
Jingsj CID
J-1100095-6
Molecular Formula
C11H19BN2O2
Chinese Name
3,5-二甲基吡唑-4-硼酸频哪醇酯
Molecular Weight
222.092 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point163-168ºC(lit.)
Boiling Point364.5±42.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point174.3±27.9 °C

Frequently Asked Questions

What is the CAS number of 3,5-Dimethylpyrazole-4-boronic acid, pinacol ester?

The CAS number of 3,5-Dimethylpyrazole-4-boronic acid, pinacol ester is 857530-80-4.

What are the molecular formula and molecular weight of 3,5-Dimethylpyrazole-4-boronic acid, pinacol ester?

3,5-Dimethylpyrazole-4-boronic acid, pinacol ester has molecular formula C11H19BN2O2 and molecular weight 222.092 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "3,5-Dimethylpyrazole-4-boronic acid, pinacol ester (CAS 857530-80-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1100095-6 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.