Potassium isobutyrate

异丁酸钾

Also known as: Potassium 2-methylpropanoate, Isobutyric acid potassium salt, 2-Methylpropionic acid potassium salt, 2-Methylpropanoic acid potassium salt, Propanoic acid, 2-methyl-, potassium salt, Potassium 2-methylpropionate, Potassium dimethylacetate

Potassium isobutyrate (CAS 19455-20-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H7KO2 and a molecular weight of 126.19500 g/mol. It is also known as Potassium 2-methylpropanoate, Isobutyric acid potassium salt and 2-Methylpropionic acid potassium salt. Key properties include a boiling point of 155.2ºC at 760mmHg, a density of 0.983g/cm3 and a flash point of 58.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
19455-20-0
Jingsj CID
J-1319639-2
Molecular Formula
C4H7KO2
Chinese Name
异丁酸钾
Molecular Weight
126.19500 g/mol
Category
Organic Acids
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point155.2ºC at 760mmHg
Density0.983g/cm3
Flash Point58.2ºC

Frequently Asked Questions

What is the CAS number of Potassium isobutyrate?

The CAS number of Potassium isobutyrate is 19455-20-0.

What are the molecular formula and molecular weight of Potassium isobutyrate?

Potassium isobutyrate has molecular formula C4H7KO2 and molecular weight 126.19500 g/mol.

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

Last updated:

How to cite: Jingsj. "Potassium isobutyrate (CAS 19455-20-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1319639-2 (accessed 2026-10-22).

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