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5-Decanone

Also known as: 5-Decanone, decan-5-one, butylpentyl ketone, n-amyl n-butyl ketone, n-pentyl n-butyl ketone, butyl pentyl ketone, AI3-19946, EINECS 212-469-0, MFCD00053805

5-Decanone (CAS 820-29-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C10H20O and a molecular weight of 156.26500 g/mol. Key properties include a melting point of -9.2 °C, a boiling point of 208.7ºC at 760 mmHg, a density of 0.819g/cm3 and a flash point of 67.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
820-29-1
Jingsj CID
J-9989-5
Molecular Formula
C10H20O
Molecular Weight
156.26500 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-9.2 °C
Boiling Point208.7ºC at 760 mmHg
Density0.819g/cm3
Flash Point67.7ºC
Exact Mass156.15100
PSA17.07000
LogP3.32600
Refractive Index1.421

Frequently Asked Questions

What is the CAS number of 5-Decanone?

The CAS number of 5-Decanone is 820-29-1.

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

5-Decanone has molecular formula C10H20O and molecular weight 156.26500 g/mol.

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

For 5-Decanone, Upstream Products: 5-Decene, (5E)-, 5-Decanol, 4-Octyne; Downstream Products: Hexanoic acid, Butyric acid, Pentanoic 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-Decanone (CAS 820-29-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9989-5 (accessed 2026-11-07).

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