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5-Methyl-2-hexanone

Also known as: Isoamyl methyl ketone, Methyl isoamyl ketone, Isobutyl acetone, Isobutyl methyl ketone, 2-Hexanone, 5-methyl-, 5-Methylhexan-2-one, MIAK, Isopentyl methyl ketone, Isobutylaceton, Isopentyl-methylketon

5-Methyl-2-hexanone (CAS 110-12-3) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C7H14O and a molecular weight of 114.186 g/mol. Key properties include a melting point of -74 °C, a boiling point of 144.0±0.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 41.1±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
110-12-3
Jingsj CID
J-1991879-4
Molecular Formula
C7H14O
Molecular Weight
114.186 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-74 °C
Boiling Point144.0±0.0 °C at 760 mmHg
Density0.8±0.1 g/cm3
Flash Point41.1±0.0 °C
Exact Mass114.104462
PSA17.07000
LogP1.78
Additional Property3.94 (vs air)
Vapor Pressure5.2±0.2 mmHg at 25°C
Refractive Index1.402
Additional Property5.4 g/L (20 ºC)

GHS Safety & Compliance

Flammable / IrritantSignal word: Warning
  • H226 — Flammable liquid and vapour
  • H332 — Harmful if inhaled

Customs & Trade Information

HS Code2914190090
Summary2914190090 other acyclic ketones without other oxygen function。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 5-Methyl-2-hexanone?

The CAS number of 5-Methyl-2-hexanone is 110-12-3.

What are the molecular formula and molecular weight of 5-Methyl-2-hexanone?

5-Methyl-2-hexanone has molecular formula C7H14O and molecular weight 114.186 g/mol.

Is 5-Methyl-2-hexanone hazardous?

5-Methyl-2-hexanone has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H332 — Harmful if inhaled.

What are the upstream and downstream products of 5-Methyl-2-hexanone?

For 5-Methyl-2-hexanone, Upstream Products: 5-Methyl-2-hexanol, Isobutyraldehyde, Bromobenzene; Downstream Products: 2,5-Dimethyl-2-hexanol, Isovaleric acid, acetic acid.

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

Last updated:

How to cite: Jingsj. "5-Methyl-2-hexanone (CAS 110-12-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1991879-4 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.