1,4-diazaspiro[5.5]undecane-3,5-dione

1,4-二氮杂螺[5.5]十一烷-3,5-二酮

Also known as: 2.6-Dioxo-3.3-pentamethylen-piperazin, 3,3-Pentamethylen-2,6-dioxo-piperazin

1,4-diazaspiro[5.5]undecane-3,5-dione (CAS 5699-91-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H14N2O2 and a molecular weight of 182.22000 g/mol. It is also known as 2.6-Dioxo-3.3-pentamethylen-piperazin and 3,3-Pentamethylen-2,6-dioxo-piperazin. Key properties include a boiling point of 390.1ºC at 760 mmHg, a density of 1.21g/cm3 and a flash point of 178.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5699-91-2
Jingsj CID
J-1096250-3
Molecular Formula
C9H14N2O2
Chinese Name
1,4-二氮杂螺[5.5]十一烷-3,5-二酮
Molecular Weight
182.22000 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point390.1ºC at 760 mmHg
Density1.21g/cm3
Flash Point178.3ºC

Frequently Asked Questions

What is the CAS number of 1,4-diazaspiro[5.5]undecane-3,5-dione?

The CAS number of 1,4-diazaspiro[5.5]undecane-3,5-dione is 5699-91-2.

What are the molecular formula and molecular weight of 1,4-diazaspiro[5.5]undecane-3,5-dione?

1,4-diazaspiro[5.5]undecane-3,5-dione has molecular formula C9H14N2O2 and molecular weight 182.22000 g/mol.

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

Last updated:

How to cite: Jingsj. "1,4-diazaspiro[5.5]undecane-3,5-dione (CAS 5699-91-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1096250-3 (accessed 2026-10-25).

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