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5-Nonanone

Also known as: Dibutyl ketone, Di-n-butyl ketone, Valerone, 5-Nonanon, 5-Oxononane, Nonanone, butyl ketone, dibutylketone, n-butyl ketone, nonan-5-one

5-Nonanone (CAS 502-56-7) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H18O and a molecular weight of 142.239 g/mol. Key properties include a melting point of -50 °C, a boiling point of 190.0±8.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 60.6±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
502-56-7
Jingsj CID
J-3163-3
Molecular Formula
C9H18O
Molecular Weight
142.239 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-50 °C
Boiling Point190.0±8.0 °C at 760 mmHg
Density0.8±0.1 g/cm3
Flash Point60.6±0.0 °C
Exact Mass142.135757
PSA17.07000
LogP3.03
Vapor Pressure0.6±0.4 mmHg at 25°C
Refractive Index1.417

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-Nonanone?

The CAS number of 5-Nonanone is 502-56-7.

What are the molecular formula and molecular weight of 5-Nonanone?

5-Nonanone has molecular formula C9H18O and molecular weight 142.239 g/mol.

What are the upstream and downstream products of 5-Nonanone?

For 5-Nonanone, Upstream Products: 5-nonanol, γ-Valerolactone; Downstream Products: 4-Methyl-5-nonanone, 5-methyl-5-nonanol, TRANS-1-PHENYL-1-PENTENE.

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-Nonanone (CAS 502-56-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3163-3 (accessed 2026-11-07).

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