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
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 66.0 to 70.0 °C |
|---|---|
| Boiling Point | 359.1±27.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 171.0±23.7 °C |
| Exact Mass | 238.083496 |
| PSA | 63.77000 |
| LogP | 1.85980 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.512 |
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
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.
What are the upstream and downstream products of 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carbaldehyde?
For 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carbaldehyde, Upstream Products: 5-Bromothiophene-2-carbaldehyde, Bis(pinacolato)diboron.
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 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.