1,5-dioxepan-2-one

1,5-二氧杂环庚烷-2-酮

Also known as: 1,4-dioxepan-5-one, 1,5-dxo, 1,5-dioxepan-2-one

1,5-dioxepan-2-one (CAS 35438-57-4) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H8O3 and a molecular weight of 116.11500 g/mol. It is also known as 1,4-dioxepan-5-one and 1,5-dxo. Key properties include a melting point of 36ºC, a boiling point of 266.8ºC at 760mmHg, a density of 1.129g/cm3 and a flash point of 106.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
35438-57-4
Jingsj CID
J-1518527-9
Molecular Formula
C5H8O3
Chinese Name
1,5-二氧杂环庚烷-2-酮
Molecular Weight
116.11500 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point36ºC
Boiling Point266.8ºC at 760mmHg
Density1.129g/cm3
Flash Point106.2ºC

Frequently Asked Questions

What is the CAS number of 1,5-dioxepan-2-one?

The CAS number of 1,5-dioxepan-2-one is 35438-57-4.

What are the molecular formula and molecular weight of 1,5-dioxepan-2-one?

1,5-dioxepan-2-one has molecular formula C5H8O3 and molecular weight 116.11500 g/mol.

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

Last updated:

How to cite: Jingsj. "1,5-dioxepan-2-one (CAS 35438-57-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1518527-9 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.