3-Methyl-2-pentanone

3-甲基-2-戊酮

Also known as: (±)-3-methyl-pentan-2-one, 2-Pentanone,3-methyl-, 2-Pentanone,3-methyl-,(±)-, 3-METHYL-2-PENTANONE, 3-methyl-2-pentanon, 3-methyl-pentan-2-one, 3-methylpentan-2-one, EINECS 209-282-1, METHYL SEC-BUTYL KETONE, MFCD00009336, SEC-BUTYL METHYL KETONE

CAS No.
565-61-7
Jingsj CID
J-13779-7
Molecular Formula
C6H12O
Chinese Name
3-甲基-2-戊酮
Molecular Weight
100.15900 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point118 °C758 mm Hg(lit.)
Density0.815 g/mL at 25 °C(lit.)
Flash Point54 °F

GHS Safety & Compliance

FlammableSignal word: Danger

Frequently Asked Questions

What is the CAS number of 3-Methyl-2-pentanone?

565-61-7

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

C6H12O, molecular weight 100.15900 g/mol

Is 3-Methyl-2-pentanone hazardous?

Danger

Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026