2-(Bromomethyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

Also known as: (Bromomethyl)boronic acid pinacol ester, Bromomethylboronic acid pinacol ester, Pinacol (bromomethyl)boronate, 1,3,2-Dioxaborolane, 2-(bromomethyl)-4,4,5,5-tetramethyl-

2-(Bromomethyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 166330-03-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H14BBrO2 and a molecular weight of 220.900 g/mol. Key properties include a boiling point of 180.3±23.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 62.8±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 166330-03-6
Jingsj CID: J-1993182-9
Molecular Formula: C₇H₁₄BBrO₂
Molecular Weight: 220.900 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	180.3±23.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	62.8±22.6 °C
Exact Mass	220.027023
PSA	18.46000
LogP	2.43100
Vapor Pressure	1.2±0.3 mmHg at 25°C
Refractive Index	1.451

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. 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 2-(Bromomethyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane?

The CAS number of 2-(Bromomethyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane is 166330-03-6.

What are the molecular formula and molecular weight of 2-(Bromomethyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane?

2-(Bromomethyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane has molecular formula C7H14BBrO2 and molecular weight 220.900 g/mol.

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. "2-(Bromomethyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 166330-03-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993182-9 (accessed 2026-11-09).

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