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4,4-DIMETHYL-2-PENTANONE

Also known as: 2-Pentanone,4,4-dimethyl-, 4,4-DIMETHYLPENTAN-2-ONE, 4,4-Dimethyl-2-pentanone, 4,4-dimethylpentan-2-one, EINECS 209-685-2, METHYL NEOPENTYL KETONE, MFCD00008854, Methyl neoamyl ketone, Methylneoamylketone, NEOPENTYL METHYL KETONE, neo-C5H11COCH3

4,4-DIMETHYL-2-PENTANONE (CAS 590-50-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C7H14O and a molecular weight of 114.18500 g/mol. Key properties include a melting point of -64 °C, a boiling point of 125-130 °C(lit.), a density of 0.809 g/mL at 25 °C(lit.) and a flash point of 18.9 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
590-50-1
Jingsj CID
J-48676-0
Molecular Formula
C7H14O
Molecular Weight
114.18500 g/mol
Category
Ketones
Last updated
11/2/2026
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Physicochemical Properties

Melting Point-64 °C
Boiling Point125-130 °C(lit.)
Density0.809 g/mL at 25 °C(lit.)
Flash Point18.9 °C
Exact Mass114.10400
PSA17.07000
LogP2.01160
Refractive Indexn20/D 1.404(lit.)

GHS Safety & Compliance

FlammableSignal word: Danger
  • H225 — Highly flammable liquid and vapour

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 4,4-DIMETHYL-2-PENTANONE?

The CAS number of 4,4-DIMETHYL-2-PENTANONE is 590-50-1.

What are the molecular formula and molecular weight of 4,4-DIMETHYL-2-PENTANONE?

4,4-DIMETHYL-2-PENTANONE has molecular formula C7H14O and molecular weight 114.18500 g/mol.

Is 4,4-DIMETHYL-2-PENTANONE hazardous?

4,4-DIMETHYL-2-PENTANONE has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour.

What are the upstream and downstream products of 4,4-DIMETHYL-2-PENTANONE?

For 4,4-DIMETHYL-2-PENTANONE, Upstream Products: 2,4,4-Trimethylpent-1-ene, Mesityl oxide, 2-(2,2-dimethylpropyl)-4,4-dimethylpent-1-ene; Downstream Products: ethyl 3,3-dimethylbutanoate, 3,3-dimethyl-2-butanol, 2,3,3-Trimethylbutanoic 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. "4,4-DIMETHYL-2-PENTANONE (CAS 590-50-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48676-0 (accessed 2026-11-09).

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