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(Dimethylphenylsilyl)boronic acid pinacol ester

Also known as: 2-(Dimethylphenylsilyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, Dimethyl(phenyl)(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)silane, B-(Dimethylphenylsilyl)pinacolborane, Dimethylphenylsilyl boronic ester, 1,3,2-Dioxaborolane,2-(dimethylphenylsilyl)-4,4,5,5-tetramethyl-, C-1628, SKL219

(Dimethylphenylsilyl)boronic acid pinacol ester (CAS 185990-03-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H23BO2Si and a molecular weight of 262.22800 g/mol. Key properties include a boiling point of 266.887ºC at 760 mmHg, a density of 0.962 g/mL at 25ºC and a flash point of 110ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
185990-03-8
Jingsj CID
J-1526342-0
Molecular Formula
C14H23BO2Si
Molecular Weight
262.22800 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point266.887ºC at 760 mmHg
Density0.962 g/mL at 25ºC
Flash Point110ºC
Exact Mass262.15600
PSA18.46000
LogP2.77260
Vapor Pressure0.014mmHg at 25°C
Refractive Indexn20/D 1.4946
Storage Conditions2~8℃，Seal

Frequently Asked Questions

What is the CAS number of (Dimethylphenylsilyl)boronic acid pinacol ester?

The CAS number of (Dimethylphenylsilyl)boronic acid pinacol ester is 185990-03-8.

What are the molecular formula and molecular weight of (Dimethylphenylsilyl)boronic acid pinacol ester?

(Dimethylphenylsilyl)boronic acid pinacol ester has molecular formula C14H23BO2Si and molecular weight 262.22800 g/mol.

What are the upstream and downstream products of (Dimethylphenylsilyl)boronic acid pinacol ester?

For (Dimethylphenylsilyl)boronic acid pinacol ester, Upstream Products: 2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, Chlorodimethylphenylsilane, Pinacolborane; Downstream Products: 4-Methoxyphenylboronic Acid Pinacol Ester, N,N-Dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline, 2-(4-chlorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane.

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

Last updated:

How to cite: Jingsj. "(Dimethylphenylsilyl)boronic acid pinacol ester (CAS 185990-03-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1526342-0 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.