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

5-苯基噻吩-2-硼酸频哪醇酯

Also known as: 5-Phenylthiophene-2-boronic acid pinacol ester, 2-Phenylthiophene-5-boronic acid pinacol ester, 5-Phenyl-2-thienylboronic acid pinacol ester, 1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-(5-phenyl-2-thienyl)-, 4,4,5,5-Tetramethyl-2-(5-phenyl-2-thienyl)-1,3,2-dioxaborolane

4,4,5,5-tetramethyl-2-(5-phenylthiophen-2-yl)-1,3,2-dioxaborolane (CAS 459409-74-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C16H19BO2S and a molecular weight of 286.197 g/mol. It is also known as 5-Phenylthiophene-2-boronic acid pinacol ester, 2-Phenylthiophene-5-boronic acid pinacol ester and 5-Phenyl-2-thienylboronic acid pinacol ester. Key properties include a boiling point of 409.3±33.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 201.4±25.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
459409-74-6
Jingsj CID
J-1449017-6
Molecular Formula
C16H19BO2S
Chinese Name
5-苯基噻吩-2-硼酸频哪醇酯
Molecular Weight
286.197 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point409.3±33.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point201.4±25.4 °C

Frequently Asked Questions

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

The CAS number of 4,4,5,5-tetramethyl-2-(5-phenylthiophen-2-yl)-1,3,2-dioxaborolane is 459409-74-6.

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

4,4,5,5-tetramethyl-2-(5-phenylthiophen-2-yl)-1,3,2-dioxaborolane has molecular formula C16H19BO2S and molecular weight 286.197 g/mol.

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

Last updated:

How to cite: Jingsj. "4,4,5,5-tetramethyl-2-(5-phenylthiophen-2-yl)-1,3,2-dioxaborolane (CAS 459409-74-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1449017-6 (accessed 2026-10-25).

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