trans-2-(4-Ethylphenyl)vinylboronic acid pinacol ester

反式-2-(4-乙基苯基)乙烯基硼酸频哪醇酯

Also known as: (E)-2-(4-ethylstyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 4-ethyl-trans-beta-styrylboronic acid pinacol ester, 2-[(E)-2-(4-ethylphenyl)ethenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, trans-2-(4-ethylphenyl)vinylboronic acid pinacol ester, 97%, 2-[(1E)-2-(4-ethylphenyl)ethenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

trans-2-(4-Ethylphenyl)vinylboronic acid pinacol ester (CAS 870717-91-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C16H23BO2 and a molecular weight of 258.16400 g/mol. It is also known as (E)-2-(4-ethylstyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 4-ethyl-trans-beta-styrylboronic acid pinacol ester and 2-[(E)-2-(4-ethylphenyl)ethenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane. Key properties include a melting point of 46-51ºC, a boiling point of 308.5ºC at 760 mmHg, a density of 0.98g/cm3 and a flash point of 110ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
870717-91-2
Jingsj CID
J-1142777-9
Molecular Formula
C16H23BO2
Chinese Name
反式-2-(4-乙基苯基)乙烯基硼酸频哪醇酯
Molecular Weight
258.16400 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point46-51ºC
Boiling Point308.5ºC at 760 mmHg
Density0.98g/cm3
Flash Point110ºC

Frequently Asked Questions

What is the CAS number of trans-2-(4-Ethylphenyl)vinylboronic acid pinacol ester?

The CAS number of trans-2-(4-Ethylphenyl)vinylboronic acid pinacol ester is 870717-91-2.

What are the molecular formula and molecular weight of trans-2-(4-Ethylphenyl)vinylboronic acid pinacol ester?

trans-2-(4-Ethylphenyl)vinylboronic acid pinacol ester has molecular formula C16H23BO2 and molecular weight 258.16400 g/mol.

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

Last updated:

How to cite: Jingsj. "trans-2-(4-Ethylphenyl)vinylboronic acid pinacol ester (CAS 870717-91-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1142777-9 (accessed 2026-10-25).

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