trans-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)styrene

反式-2-(4,4,5,5-四甲基-1,3,2-二氧杂硼烷-2-基)苯乙烯

Also known as: (E)-4,4,5,5-tetramethyl-2-styryl-1,3,2-dioxaborolane, trans-2-phenylvinylboronic acid pinacol ester, E-phenylethenylboronic acid, pinacol ester, 4,4,5,5-tetramethyl-2-[(E)-2-phenylethenyl]-1,3,2-dioxaborolane, trans-styrylboronic acid, pinacol ester, β-styrylboronic acid pinacol ester, 1,3,2-dioxaborolane, 4,4,5,5-tetramethyl-2-[(E)-2-phenylethenyl]-

trans-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)styrene (CAS 78782-27-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C14H19BO2 and a molecular weight of 230.111 g/mol. It is also known as (E)-4,4,5,5-tetramethyl-2-styryl-1,3,2-dioxaborolane, trans-2-phenylvinylboronic acid pinacol ester and E-phenylethenylboronic acid, pinacol ester. Key properties include a melting point of 27-33ºC(lit.), a boiling point of 271.9±33.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 118.2±25.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
78782-27-1
Jingsj CID
J-1081962-7
Molecular Formula
C14H19BO2
Chinese Name
反式-2-(4,4,5,5-四甲基-1,3,2-二氧杂硼烷-2-基)苯乙烯
Molecular Weight
230.111 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point27-33ºC(lit.)
Boiling Point271.9±33.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point118.2±25.4 °C

Frequently Asked Questions

What is the CAS number of trans-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)styrene?

The CAS number of trans-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)styrene is 78782-27-1.

What are the molecular formula and molecular weight of trans-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)styrene?

trans-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)styrene has molecular formula C14H19BO2 and molecular weight 230.111 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-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)styrene (CAS 78782-27-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1081962-7 (accessed 2026-10-25).

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