Isoprene monoxide

一氧化异戊二烯

Also known as: 2-Methyl-2-vinyloxirane, 2-Vinyl-2-methyloxirane, 2-Ethenyl-2-methyloxirane, Isoprene monoepoxide, 3,4-Epoxy-3-methyl-1-butene, 1,2-Epoxy-2-methyl-3-butene, Oxirane, 2-ethenyl-2-methyl-, MFCD00075225

Isoprene monoxide (CAS 1838-94-4) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C5H8O and a molecular weight of 84.116 g/mol. It is also known as 2-Methyl-2-vinyloxirane, 2-Vinyl-2-methyloxirane and 2-Ethenyl-2-methyloxirane. Key properties include a boiling point of 78.7±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of -7.8±0.0 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1838-94-4
Jingsj CID
J-1991252-9
Molecular Formula
C5H8O
Chinese Name
一氧化异戊二烯
Molecular Weight
84.116 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point78.7±9.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point-7.8±0.0 °C

GHS Safety & Compliance

Flammable / IrritantSignal word: Danger

Frequently Asked Questions

What is the CAS number of Isoprene monoxide?

The CAS number of Isoprene monoxide is 1838-94-4.

What are the molecular formula and molecular weight of Isoprene monoxide?

Isoprene monoxide has molecular formula C5H8O and molecular weight 84.116 g/mol.

Is Isoprene monoxide hazardous?

Isoprene monoxide 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. "Isoprene monoxide (CAS 1838-94-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1991252-9 (accessed 2026-10-22).

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