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Benzo[b]thiophene-3-boronic acid pinacol ester

Also known as: 1-Benzothiophene-3-boronic acid pinacol ester, 2-(1-Benzothiophen-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 2-(Benzo[b]thiophen-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 2-Benzo[b]thiophen-3-yl-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane, Benzo[b]thiophene, 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-, 3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzo[b]thiophene, Benzothiophene-3-boronic acid pinacol ester

Benzo[b]thiophene-3-boronic acid pinacol ester (CAS 171364-86-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C14H17BO2S and a molecular weight of 260.160 g/mol. Key properties include a melting point of 79 °C, a boiling point of 377.7±15.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 182.2±20.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
171364-86-6
Jingsj CID
J-1019162-5
Molecular Formula
C14H17BO2S
Molecular Weight
260.160 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point79 °C
Boiling Point377.7±15.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point182.2±20.4 °C
Exact Mass260.104218
PSA46.70000
LogP3.20050
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.570

Frequently Asked Questions

What is the CAS number of Benzo[b]thiophene-3-boronic acid pinacol ester?

The CAS number of Benzo[b]thiophene-3-boronic acid pinacol ester is 171364-86-6.

What are the molecular formula and molecular weight of Benzo[b]thiophene-3-boronic acid pinacol ester?

Benzo[b]thiophene-3-boronic acid pinacol ester has molecular formula C14H17BO2S and molecular weight 260.160 g/mol.

What are the upstream and downstream products of Benzo[b]thiophene-3-boronic acid pinacol ester?

For Benzo[b]thiophene-3-boronic acid pinacol ester, Upstream Products: 3-bromo-1-benzothiophene, Pinacolborane, 2-Isopropoxy-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. "Benzo[b]thiophene-3-boronic acid pinacol ester (CAS 171364-86-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1019162-5 (accessed 2026-11-09).

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