2-ethyl-2-methyl-1,3-dioxolane

2-乙基-2-甲基-1,3-二氧戊环

Also known as: 2-butanone cyclic ethylene acetal, 2-butanone ethylene ketal, 2,2-ethylenedioxybutane, 2-ethyl-2-methyldioxolane, 2-methyl-2-ethyl-1,3-dioxolane, 2-methyl-2-ethyldioxolane, NSC 829

2-ethyl-2-methyl-1,3-dioxolane (CAS 126-39-6) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C6H12O2 and a molecular weight of 116.15800 g/mol. It is also known as 2-butanone cyclic ethylene acetal, 2-butanone ethylene ketal and 2,2-ethylenedioxybutane. Key properties include a boiling point of 116-117 °C(lit.), a density of 0.929 g/mL at 25 °C(lit.) and a flash point of 55 °F. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
126-39-6
Jingsj CID
J-1992954-9
Molecular Formula
C6H12O2
Chinese Name
2-乙基-2-甲基-1,3-二氧戊环
Molecular Weight
116.15800 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point116-117 °C(lit.)
Density0.929 g/mL at 25 °C(lit.)
Flash Point55 °F

GHS Safety & Compliance

Flammable / IrritantSignal word: Danger

Frequently Asked Questions

What is the CAS number of 2-ethyl-2-methyl-1,3-dioxolane?

The CAS number of 2-ethyl-2-methyl-1,3-dioxolane is 126-39-6.

What are the molecular formula and molecular weight of 2-ethyl-2-methyl-1,3-dioxolane?

2-ethyl-2-methyl-1,3-dioxolane has molecular formula C6H12O2 and molecular weight 116.15800 g/mol.

Is 2-ethyl-2-methyl-1,3-dioxolane hazardous?

2-ethyl-2-methyl-1,3-dioxolane 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-ethyl-2-methyl-1,3-dioxolane (CAS 126-39-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1992954-9 (accessed 2026-10-24).

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