5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carbaldehyde

5-甲酰基-2-噻吩硼酸频那醇酯

Also known as: 5-Formyl-2-thiopheneboronic acid pinacol ester, 5-Formylthiophene-2-boronic acid pinacol ester, 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carboxaldehyde, 2-Thiophenecarboxaldehyde, 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-

5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carbaldehyde (CAS 1040281-83-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H15BO3S and a molecular weight of 238.111 g/mol. It is also known as 5-Formyl-2-thiopheneboronic acid pinacol ester, 5-Formylthiophene-2-boronic acid pinacol ester and 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carboxaldehyde. Key properties include a melting point of 66.0 to 70.0 °C, a boiling point of 359.1±27.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 171.0±23.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1040281-83-1
Jingsj CID
J-1124285-3
Molecular Formula
C11H15BO3S
Chinese Name
5-甲酰基-2-噻吩硼酸频那醇酯
Molecular Weight
238.111 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point66.0 to 70.0 °C
Boiling Point359.1±27.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point171.0±23.7 °C

Frequently Asked Questions

What is the CAS number of 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carbaldehyde?

The CAS number of 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carbaldehyde is 1040281-83-1.

What are the molecular formula and molecular weight of 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carbaldehyde?

5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carbaldehyde has molecular formula C11H15BO3S and molecular weight 238.111 g/mol.

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

Last updated:

How to cite: Jingsj. "5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carbaldehyde (CAS 1040281-83-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1124285-3 (accessed 2026-10-24).

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