4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(2-thienylmethyl)-1H-pyrazole
4-(4,4,5,5-四甲基-1,3,2-二氧杂戊硼烷-2-基)-1-(2-噻吩基甲基)-1H-吡唑
Also known as: 1-(Thiophen-2-ylmethyl)-1H-pyrazole-4-boronic acid pinacol ester, 1-(Thiophen-2-ylmethyl)pyrazole-4-boronic acid, pinacol ester, 1-(thiophen-2-ylmethyl)-1H-pyrazole-4-boronic acid, pinacol ester, 1-[(2-Thienyl)Methyl]-1H-pyrazole-4-boronic acid pinacol ester, 4-(4,4,5,5-TETRAMETHYL-[1,3,2]DIOXABOROLAN-2-YL)-1-THIOPHEN-2-YLMETHYL-1H-PYRAZOLE, 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(thiophen-2-ylmethyl)-1H-pyrazole, 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(thiophen-2-ylmethyl)pyrazole
4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(2-thienylmethyl)-1H-pyrazole (CAS 864754-19-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C14H19BN2O2S and a molecular weight of 290.18900 g/mol. It is also known as 1-(Thiophen-2-ylmethyl)-1H-pyrazole-4-boronic acid pinacol ester, 1-(Thiophen-2-ylmethyl)pyrazole-4-boronic acid, pinacol ester and 1-(thiophen-2-ylmethyl)-1H-pyrazole-4-boronic acid, pinacol ester. Key properties include a melting point of 56-58ºC, a boiling point of 430.8ºC at 760 mmHg, a density of 1.17g/cm3 and a flash point of 214.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 864754-19-8
- Jingsj CID
- J-1920367-8
- Molecular Formula
- C14H19BN2O2S
- Chinese Name
- 4-(4,4,5,5-四甲基-1,3,2-二氧杂戊硼烷-2-基)-1-(2-噻吩基甲基)-1H-吡唑
- Molecular Weight
- 290.18900 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 56-58ºC |
|---|---|
| Boiling Point | 430.8ºC at 760 mmHg |
| Density | 1.17g/cm3 |
| Flash Point | 214.3ºC |
Frequently Asked Questions
What is the CAS number of 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(2-thienylmethyl)-1H-pyrazole?
The CAS number of 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(2-thienylmethyl)-1H-pyrazole is 864754-19-8.
What are the molecular formula and molecular weight of 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(2-thienylmethyl)-1H-pyrazole?
4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(2-thienylmethyl)-1H-pyrazole has molecular formula C14H19BN2O2S and molecular weight 290.18900 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(2-thienylmethyl)-1H-pyrazole (CAS 864754-19-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1920367-8 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.