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3-Methyl-2-butanone

Also known as: MIPK, Isopropyl methyl ketone, Methyl isopropyl ketone, 3-Methylbutan-2-one, 3-Methylbutanone, 2-Acetylpropane, 3-Ketoisopentane, 2-Butanone, 3-methyl-, methyl i-propyl ketone, i-propyl methyl ketone, UN 2397, MFCD00008919

3-Methyl-2-butanone (CAS 563-80-4) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H10O and a molecular weight of 86.132 g/mol. Key properties include a melting point of −92 °C(lit.), a boiling point of 78.3±3.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 6.1±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour and H336 — May cause drowsiness or dizziness. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
563-80-4
Jingsj CID
J-44435-0
Molecular Formula
C5H10O
Molecular Weight
86.132 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point−92 °C(lit.)
Boiling Point78.3±3.0 °C at 760 mmHg
Density0.8±0.1 g/cm3
Flash Point6.1±0.0 °C
Exact Mass86.073166
PSA17.07000
LogP0.72
Vapor Pressure93.3±0.1 mmHg at 25°C
Refractive Index1.381
Additional Property6 g/L (20 ºC)

GHS Safety & Compliance

Flammable / IrritantSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H336 — May cause drowsiness or dizziness

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 3-Methyl-2-butanone?

The CAS number of 3-Methyl-2-butanone is 563-80-4.

What are the molecular formula and molecular weight of 3-Methyl-2-butanone?

3-Methyl-2-butanone has molecular formula C5H10O and molecular weight 86.132 g/mol.

Is 3-Methyl-2-butanone hazardous?

3-Methyl-2-butanone has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H336 — May cause drowsiness or dizziness.

What are the upstream and downstream products of 3-Methyl-2-butanone?

For 3-Methyl-2-butanone, Upstream Products: 3-methyl-3-buten-2-ol, Butanoic acid, 2,2-dimethyl-3-oxo-, ethyl ester, acetic acid; Downstream Products: 2,3-DIMETHYL-2-PENTENE, Methyl 2,2-dimethylacetoacetate, Pinacolone.

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

Last updated:

How to cite: Jingsj. "3-Methyl-2-butanone (CAS 563-80-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44435-0 (accessed 2026-11-06).

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