1,4-Dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

1,4-二甲基吡唑-5-硼酸频哪醇酯

Also known as: 1,4-Dimethylpyrazole-5-boronic Acid Pinacol Ester, (1,4-Dimethyl-1H-pyrazol-5-yl)boronic acid pinacol ester, 1,4-Dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole, 1,4-Dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole, 1,4-dimethyl-5-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole, 1H-Pyrazole, 1,4-dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-

1,4-Dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 1047644-76-7) 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 1,4-Dimethylpyrazole-5-boronic Acid Pinacol Ester, (1,4-Dimethyl-1H-pyrazol-5-yl)boronic acid pinacol ester and 1,4-Dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole. Key properties include a boiling point of 325.8±30.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 150.8±24.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1047644-76-7
Jingsj CID
J-1048016-0
Molecular Formula
C11H19BN2O2
Chinese Name
1,4-二甲基吡唑-5-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

Boiling Point325.8±30.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point150.8±24.6 °C

Frequently Asked Questions

What is the CAS number of 1,4-Dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole?

The CAS number of 1,4-Dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole is 1047644-76-7.

What are the molecular formula and molecular weight of 1,4-Dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole?

1,4-Dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole 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. "1,4-Dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 1047644-76-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1048016-0 (accessed 2026-10-22).

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