5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazole
5-(4,4,5,5-四甲基-1,3,2-二氧杂硼杂环戊烷-2-基)-1-((2-(三甲基甲硅烷基)乙氧基)甲基)-1H-吡唑
Also known as: 1-(2-Trimethylsilylethoxy)methylpyrazole-5-boronic acid, pinacol ester, 1-SEM-1H-pyrazole-5-boronic acid pinacol ester, 1-((2-(Trimethylsilyl)ethoxy)methyl)-1H-pyrazole-5-boronic acid pinacol ester, trimethyl-[2-[[5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazol-1-yl]methoxy]ethyl]silane, B-4916
5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazole (CAS 903550-12-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C15H29BN2O3Si and a molecular weight of 324.29900 g/mol. It is also known as 1-(2-Trimethylsilylethoxy)methylpyrazole-5-boronic acid, pinacol ester, 1-SEM-1H-pyrazole-5-boronic acid pinacol ester and 1-((2-(Trimethylsilyl)ethoxy)methyl)-1H-pyrazole-5-boronic acid pinacol ester. Key properties include a boiling point of 395.1ºC at 760 mmHg, a density of 1.01g/cm3 and a flash point of 192.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 903550-12-9
- Jingsj CID
- J-1554141-1
- Molecular Formula
- C15H29BN2O3Si
- Chinese Name
- 5-(4,4,5,5-四甲基-1,3,2-二氧杂硼杂环戊烷-2-基)-1-((2-(三甲基甲硅烷基)乙氧基)甲基)-1H-吡唑
- Molecular Weight
- 324.29900 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 395.1ºC at 760 mmHg |
|---|---|
| Density | 1.01g/cm3 |
| Flash Point | 192.7ºC |
Frequently Asked Questions
What is the CAS number of 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazole?
The CAS number of 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazole is 903550-12-9.
What are the molecular formula and molecular weight of 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazole?
5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazole has molecular formula C15H29BN2O3Si and molecular weight 324.29900 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)-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazole (CAS 903550-12-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1554141-1 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.