Isobutyl p-toluenesulfonate

对甲苯磺酸异丁酯

Also known as: 2-methylpropyl 4-methylbenzenesulfonate, isobutyl tosylate, p-toluenesulfonic acid isobutyl ester, 4-methylbenzenesulfonic acid 2-methylpropyl ester, toluene-4-sulfonic acid isobutyl ester, Benzenesulfonic acid, 4-methyl-, 2-methylpropyl ester

Isobutyl p-toluenesulfonate (CAS 4873-56-7) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C11H16O3S and a molecular weight of 228.30800 g/mol. It is also known as 2-methylpropyl 4-methylbenzenesulfonate, isobutyl tosylate and p-toluenesulfonic acid isobutyl ester. Key properties include a boiling point of 329.1ºC at 760mmHg, a density of 1.12g/cm3 and a flash point of 152.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4873-56-7
Jingsj CID
J-10470-2
Molecular Formula
C11H16O3S
Chinese Name
对甲苯磺酸异丁酯
Molecular Weight
228.30800 g/mol
Category
Solvents
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point329.1ºC at 760mmHg
Density1.12g/cm3
Flash Point152.8ºC

Frequently Asked Questions

What is the CAS number of Isobutyl p-toluenesulfonate?

The CAS number of Isobutyl p-toluenesulfonate is 4873-56-7.

What are the molecular formula and molecular weight of Isobutyl p-toluenesulfonate?

Isobutyl p-toluenesulfonate has molecular formula C11H16O3S and molecular weight 228.30800 g/mol.

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

Last updated:

How to cite: Jingsj. "Isobutyl p-toluenesulfonate (CAS 4873-56-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-10470-2 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.