5-Methyl-3-heptanone

5-甲基-3-庚酮

Also known as: 2-Methylbutyl ethyl ketone, Ethyl isoamyl ketone, Ethyl sec-amyl ketone, Amyl ethyl ketone, 3-Heptanone, 5-methyl-, 5-Methylheptan-3-one, 5-Methyl-3-heptanon, ISOAMYL ETHYL KETONE, MFCD00009340, NSC 100734

5-Methyl-3-heptanone (CAS 541-85-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H16O and a molecular weight of 128.212 g/mol. It is also known as 2-Methylbutyl ethyl ketone, Ethyl isoamyl ketone and Ethyl sec-amyl ketone. Key properties include a boiling point of 159.9±8.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 43.9±0.0 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
541-85-5
Jingsj CID
J-1394509-1
Molecular Formula
C8H16O
Chinese Name
5-甲基-3-庚酮
Molecular Weight
128.212 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point159.9±8.0 °C at 760 mmHg
Density0.8±0.1 g/cm3
Flash Point43.9±0.0 °C

GHS Safety & Compliance

Flammable / IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 5-Methyl-3-heptanone?

The CAS number of 5-Methyl-3-heptanone is 541-85-5.

What are the molecular formula and molecular weight of 5-Methyl-3-heptanone?

5-Methyl-3-heptanone has molecular formula C8H16O and molecular weight 128.212 g/mol.

Is 5-Methyl-3-heptanone hazardous?

5-Methyl-3-heptanone 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. "5-Methyl-3-heptanone (CAS 541-85-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1394509-1 (accessed 2026-10-25).

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