2-Butanone peroxide

过氧化甲乙酮

Also known as: Methyl ethyl ketone peroxide, MEKP, MEK peroxide, Butanox M50, Hi-Point 90, Kayamek A, dioxybis(1-methylpropylidene) dihydroperoxide, 2-Butanone peroxide dimer

2-Butanone peroxide (CAS 1338-23-4) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H18O6 and a molecular weight of 210.225 g/mol. It is also known as Methyl ethyl ketone peroxide, MEKP and MEK peroxide. Key properties include a melting point of 110°C, a boiling point of 304.9±27.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 138.2±23.7 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1338-23-4
Jingsj CID
J-16648-5
Molecular Formula
C8H18O6
Chinese Name
过氧化甲乙酮
Molecular Weight
210.225 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point110°C
Boiling Point304.9±27.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point138.2±23.7 °C

GHS Safety & Compliance

Flammable / CorrosionSignal word: Danger

Frequently Asked Questions

What is the CAS number of 2-Butanone peroxide?

The CAS number of 2-Butanone peroxide is 1338-23-4.

What are the molecular formula and molecular weight of 2-Butanone peroxide?

2-Butanone peroxide has molecular formula C8H18O6 and molecular weight 210.225 g/mol.

Is 2-Butanone peroxide hazardous?

2-Butanone peroxide has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "2-Butanone peroxide (CAS 1338-23-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-16648-5 (accessed 2026-10-24).

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