Propyl isobutyrate

2-甲基丙酸丙酯

Also known as: Isobutyric Acid N-Propyl Ester, Isobutyric Acid Propyl Ester, Propyl 2-methylpropanoate, N-Propyl isobutyrate, 2-Methylpropanoic acid propyl ester, FEMA 2936

Propyl isobutyrate (CAS 644-49-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H14O2 and a molecular weight of 130.18500 g/mol. It is also known as Isobutyric Acid N-Propyl Ester, Isobutyric Acid Propyl Ester and Propyl 2-methylpropanoate. Key properties include a boiling point of 134 °C(lit.), a density of 0.863 g/mL at 25 °C(lit.) and a flash point of 80 °F. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
644-49-5
Jingsj CID
J-45484-5
Molecular Formula
C7H14O2
Chinese Name
2-甲基丙酸丙酯
Molecular Weight
130.18500 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point134 °C(lit.)
Density0.863 g/mL at 25 °C(lit.)
Flash Point80 °F

GHS Safety & Compliance

FlammableSignal word: Warning

Frequently Asked Questions

What is the CAS number of Propyl isobutyrate?

The CAS number of Propyl isobutyrate is 644-49-5.

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

Propyl isobutyrate has molecular formula C7H14O2 and molecular weight 130.18500 g/mol.

Is Propyl isobutyrate hazardous?

Propyl isobutyrate has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "Propyl isobutyrate (CAS 644-49-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45484-5 (accessed 2026-10-24).

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