2,4,4,5,5-Pentamethyl-1,3,2-dioxaborolane

甲基硼酸频哪醇酯

Also known as: Methyl boronic acid pinacol ester, Pinacol cyclic methaneboronate, Pinacol methyl borate ester, 1,3,2-Dioxaborolane, 2,4,4,5,5-pentamethyl-, 2-Methyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

2,4,4,5,5-Pentamethyl-1,3,2-dioxaborolane (CAS 94242-85-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H15BO2 and a molecular weight of 142.004 g/mol. It is also known as Methyl boronic acid pinacol ester, Pinacol cyclic methaneboronate and Pinacol methyl borate ester. Key properties include a boiling point of 128.2±9.0 °C at 760 mmHg, a density of 0.88±0.1 g/cm3 and a flash point of 31.3±18.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
94242-85-0
Jingsj CID
J-1522634-3
Molecular Formula
C7H15BO2
Chinese Name
甲基硼酸频哪醇酯
Molecular Weight
142.004 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point128.2±9.0 °C at 760 mmHg
Density0.88±0.1 g/cm3
Flash Point31.3±18.7 °C

Frequently Asked Questions

What is the CAS number of 2,4,4,5,5-Pentamethyl-1,3,2-dioxaborolane?

The CAS number of 2,4,4,5,5-Pentamethyl-1,3,2-dioxaborolane is 94242-85-0.

What are the molecular formula and molecular weight of 2,4,4,5,5-Pentamethyl-1,3,2-dioxaborolane?

2,4,4,5,5-Pentamethyl-1,3,2-dioxaborolane has molecular formula C7H15BO2 and molecular weight 142.004 g/mol.

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

Last updated:

How to cite: Jingsj. "2,4,4,5,5-Pentamethyl-1,3,2-dioxaborolane (CAS 94242-85-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1522634-3 (accessed 2026-10-22).

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