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isopropenylboronic acid pinacol ester

Also known as: 2-Isopropenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 4,4,5,5-Tetramethyl-2-(prop-1-en-2-yl)-1,3,2-dioxaborolane, 4,4,5,5-tetramethyl-2-prop-1-en-2-yl-1,3,2-dioxaborolane, 2-(1-Methylethenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

isopropenylboronic acid pinacol ester (CAS 126726-62-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H17BO2 and a molecular weight of 168.041 g/mol. Key properties include a melting point of 157-161ºC, a boiling point of 157.5±23.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 49.1±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
126726-62-3
Jingsj CID
J-1403434-5
Molecular Formula
C9H17BO2
Molecular Weight
168.041 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point157-161ºC
Boiling Point157.5±23.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point49.1±22.6 °C
Exact Mass168.132156
PSA18.46000
LogP2.19390
AppearanceLiquid | Clear, colorless to brown
Vapor Pressure3.6±0.3 mmHg at 25°C
Refractive Index1.422
Storage Conditions2-8°C

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of isopropenylboronic acid pinacol ester?

The CAS number of isopropenylboronic acid pinacol ester is 126726-62-3.

What are the molecular formula and molecular weight of isopropenylboronic acid pinacol ester?

isopropenylboronic acid pinacol ester has molecular formula C9H17BO2 and molecular weight 168.041 g/mol.

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

Last updated:

How to cite: Jingsj. "isopropenylboronic acid pinacol ester (CAS 126726-62-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1403434-5 (accessed 2026-11-09).

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