2-bromoethyl 4-methylbenzenesulfonate

Also known as: 2-bromoethyl p-toluenesulfonate, 2-bromoethyl tosylate, 1-bromo-2-(p-toluenesulfonyloxy)ethane, 1-bromo-2-(toluene-4-sulfonyloxy)-ethane, 2-bromoethyl 4-methylbenzene-1-sulfonate, bromoethyl tosylate, Ethanol, 2-bromo-, 1-(4-methylbenzenesulfonate), Ethanol, 2-bromo-, 4-methylbenzenesulfonate, 2-BroMo-ethyl tosylate

2-bromoethyl 4-methylbenzenesulfonate (CAS 19263-21-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H11BrO3S and a molecular weight of 279.151 g/mol. Key properties include a boiling point of 365.6±25.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 174.9±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 19263-21-9
Jingsj CID: J-1166885-2
Molecular Formula: C₉H₁₁BrO₃S
Molecular Weight: 279.151 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	365.6±25.0 °C at 760 mmHg
Density	1.5±0.1 g/cm3
Flash Point	174.9±23.2 °C
Exact Mass	277.961212
PSA	51.75000
LogP	2.28
Vapor Pressure	0.0±0.8 mmHg at 25°C
Refractive Index	1.555

Frequently Asked Questions

What is the CAS number of 2-bromoethyl 4-methylbenzenesulfonate?

The CAS number of 2-bromoethyl 4-methylbenzenesulfonate is 19263-21-9.

What are the molecular formula and molecular weight of 2-bromoethyl 4-methylbenzenesulfonate?

2-bromoethyl 4-methylbenzenesulfonate has molecular formula C9H11BrO3S and molecular weight 279.151 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-bromoethyl 4-methylbenzenesulfonate (CAS 19263-21-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1166885-2 (accessed 2026-11-09).

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