Isobutyl isothiocyanate

异硫氰酸异丁酯

Also known as: 1-isothiocyanato-2-methylpropane, 2-Methylpropyl isothiocyanate, i-Butyl isothiocyanate, Isothiocyanic acid isobutyl ester, Propane, 1-isothiocyanato-2-methyl-, Isobutyl mustard oil

Isobutyl isothiocyanate (CAS 591-82-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H9NS and a molecular weight of 115.19700 g/mol. It is also known as 1-isothiocyanato-2-methylpropane, 2-Methylpropyl isothiocyanate and i-Butyl isothiocyanate. Key properties include a boiling point of 160 °C, a density of 0.94 and a flash point of 24°C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
591-82-2
Jingsj CID
J-49580-6
Molecular Formula
C5H9NS
Chinese Name
异硫氰酸异丁酯
Molecular Weight
115.19700 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point160 °C
Density0.94
Flash Point24°C

Frequently Asked Questions

What is the CAS number of Isobutyl isothiocyanate?

The CAS number of Isobutyl isothiocyanate is 591-82-2.

What are the molecular formula and molecular weight of Isobutyl isothiocyanate?

Isobutyl isothiocyanate has molecular formula C5H9NS and molecular weight 115.19700 g/mol.

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

Last updated:

How to cite: Jingsj. "Isobutyl isothiocyanate (CAS 591-82-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49580-6 (accessed 2026-10-24).

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