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2-(5-Chlorothiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

5-氯噻吩-2-硼酸频哪醇酯

Also known as: 5-Chlorothiophene-2-boronic acid pinacol ester, 5-Chloro-2-thiopheneboronic Acid Pinacol Ester, 5-Chloro-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene, 2-(5-Chloro-2-thienyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 5-Chlorothiophene-2-boronic acid picol ester

2-(5-Chlorothiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 635305-24-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H14BClO2S and a molecular weight of 244.546 g/mol. It is also known as 5-Chlorothiophene-2-boronic acid pinacol ester, 5-Chloro-2-thiopheneboronic Acid Pinacol Ester and 5-Chloro-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene. Key properties include a boiling point of 315.3±27.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 144.5±23.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
635305-24-7
Jingsj CID
J-917009-6
Molecular Formula
C10H14BClO2S
Chinese Name
5-氯噻吩-2-硼酸频哪醇酯
Molecular Weight
244.546 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point315.3±27.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point144.5±23.7 °C

Frequently Asked Questions

What is the CAS number of 2-(5-Chlorothiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane?

The CAS number of 2-(5-Chlorothiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane is 635305-24-7.

What are the molecular formula and molecular weight of 2-(5-Chlorothiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane?

2-(5-Chlorothiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane has molecular formula C10H14BClO2S and molecular weight 244.546 g/mol.

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

Last updated:

How to cite: Jingsj. "2-(5-Chlorothiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 635305-24-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-917009-6 (accessed 2026-10-24).

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