5-Pyrimidinylboronic acid
嘧啶-5-硼酸
Also known as: Pyrimidine-5-boronic acid, 5-Pyrimidylboronic acid, Boronic acid, B-5-pyrimidinyl-, Boronic acid, 5-pyrimidinyl- (9CI), Pyrimidin-5-ylboronic acid, 5-Pyrimidineboronic Acid, 5-Pyrimidylboronic Acid (contains varying amounts of Anhydride)
5-Pyrimidinylboronic acid (CAS 109299-78-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H5BN2O2 and a molecular weight of 123.91 g/mol. It is also known as Pyrimidine-5-boronic acid, 5-Pyrimidylboronic acid and Boronic acid, B-5-pyrimidinyl-. Key properties include a melting point of 110-114 °C, a boiling point of 334.7±34.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 156.2±25.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 109299-78-7
- Jingsj CID
- J-5212-0
- Molecular Formula
- C4H5BN2O2
- Chinese Name
- 嘧啶-5-硼酸
- Molecular Weight
- 123.91 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 110-114 °C |
|---|---|
| Boiling Point | 334.7±34.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 156.2±25.7 °C |
Frequently Asked Questions
What is the CAS number of 5-Pyrimidinylboronic acid?
The CAS number of 5-Pyrimidinylboronic acid is 109299-78-7.
What are the molecular formula and molecular weight of 5-Pyrimidinylboronic acid?
5-Pyrimidinylboronic acid has molecular formula C4H5BN2O2 and molecular weight 123.91 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Pyrimidinylboronic acid (CAS 109299-78-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-5212-0 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.