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(1-ethyl-1H-pyrazol-5-yl)boronic acid

1-乙基吡唑-5-硼酸

Also known as: 1-Ethylpyrazole-5-boronic Acid, B-(1-Ethyl-1H-pyrazol-5-yl)boronic acid, (1-ETHYL-1H-PYRAZOL-5-YL)BORANEDIOL, 1-ethyl-1H-pyrazol-5-ylboronic acid, Boronic acid, B-(1-ethyl-1H-pyrazol-5-yl)-

(1-ethyl-1H-pyrazol-5-yl)boronic acid (CAS 1095080-54-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H9BN2O2 and a molecular weight of 139.948 g/mol. It is also known as 1-Ethylpyrazole-5-boronic Acid, B-(1-Ethyl-1H-pyrazol-5-yl)boronic acid and (1-ETHYL-1H-PYRAZOL-5-YL)BORANEDIOL. Key properties include a boiling point of 322.9±34.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 149.1±25.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1095080-54-8
Jingsj CID
J-1414840-2
Molecular Formula
C5H9BN2O2
Chinese Name
1-乙基吡唑-5-硼酸
Molecular Weight
139.948 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point322.9±34.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point149.1±25.7 °C

Frequently Asked Questions

What is the CAS number of (1-ethyl-1H-pyrazol-5-yl)boronic acid?

The CAS number of (1-ethyl-1H-pyrazol-5-yl)boronic acid is 1095080-54-8.

What are the molecular formula and molecular weight of (1-ethyl-1H-pyrazol-5-yl)boronic acid?

(1-ethyl-1H-pyrazol-5-yl)boronic acid has molecular formula C5H9BN2O2 and molecular weight 139.948 g/mol.

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

Last updated:

How to cite: Jingsj. "(1-ethyl-1H-pyrazol-5-yl)boronic acid (CAS 1095080-54-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1414840-2 (accessed 2026-10-24).

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