4,4,5,5-Tetramethyl-2-(o-tolyl)-1,3,2-dioxaborolane

Also known as: 2-Methylphenylboronic acid pinacol ester, o-Tolylboronic acid pinacol ester, 2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)toluene, 4,4,5,5-Tetramethyl-2-(2-methylphenyl)-1,3,2-dioxaborolane, 2-Tolylboronic acid pinacol ester

4,4,5,5-Tetramethyl-2-(o-tolyl)-1,3,2-dioxaborolane (CAS 195062-59-0) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C13H19BO2 and a molecular weight of 218.100 g/mol. Key properties include a melting point of 18 °C, a boiling point of 303.1±21.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 137.1±22.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 195062-59-0
Jingsj CID: J-1498294-6
Molecular Formula: C₁₃H₁₉BO₂
Molecular Weight: 218.100 g/mol
Category: Solvents
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	18 °C
Boiling Point	303.1±21.0 °C at 760 mmHg
Density	1.0±0.1 g/cm3
Flash Point	137.1±22.1 °C
Exact Mass	218.147812
PSA	18.46000
LogP	2.29420
Vapor Pressure	0.0±0.6 mmHg at 25°C
Refractive Index	1.491

Customs & Trade Information

HS Code	2931900090
Summary	2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4,4,5,5-Tetramethyl-2-(o-tolyl)-1,3,2-dioxaborolane?

The CAS number of 4,4,5,5-Tetramethyl-2-(o-tolyl)-1,3,2-dioxaborolane is 195062-59-0.

What are the molecular formula and molecular weight of 4,4,5,5-Tetramethyl-2-(o-tolyl)-1,3,2-dioxaborolane?

4,4,5,5-Tetramethyl-2-(o-tolyl)-1,3,2-dioxaborolane has molecular formula C13H19BO2 and molecular weight 218.100 g/mol.

What are the upstream and downstream products of 4,4,5,5-Tetramethyl-2-(o-tolyl)-1,3,2-dioxaborolane?

For 4,4,5,5-Tetramethyl-2-(o-tolyl)-1,3,2-dioxaborolane, Upstream Products: 2-Bromotoluene, Bis(pinacolato)diboron, Pinacolborane; Downstream Products: 2-Ethoxychroman, 2-Bromomethylphenylboronic acid pinacol ester, Ethyl o-tolylacetate.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4,4,5,5-Tetramethyl-2-(o-tolyl)-1,3,2-dioxaborolane (CAS 195062-59-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1498294-6 (accessed 2026-11-09).

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