1,5-dioxaspiro[5.5]undecane-2,4-dione
1,5-二氧杂螺[5.5]十一烷-2,4-二酮
Also known as: 1,5-dioxa-spiro[5.5]undecane-2,4-dione, 2,2-pentamethylene-1,3-dioxane-4,6-dione, 2,2-pentamethylene-4,6-dioxo-1,3-dioxane, cyclohexylidenemalonate, 1,1-cyclohexanediol cyclic 1,3-propanedioate
1,5-dioxaspiro[5.5]undecane-2,4-dione (CAS 1658-27-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H12O4 and a molecular weight of 184.18900 g/mol. It is also known as 1,5-dioxa-spiro[5.5]undecane-2,4-dione, 2,2-pentamethylene-1,3-dioxane-4,6-dione and 2,2-pentamethylene-4,6-dioxo-1,3-dioxane. Key properties include a boiling point of 443ºC at 760 mmHg, a density of 1.25g/cm3 and a flash point of 241.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1658-27-1
- Jingsj CID
- J-1025339-3
- Molecular Formula
- C9H12O4
- Chinese Name
- 1,5-二氧杂螺[5.5]十一烷-2,4-二酮
- Molecular Weight
- 184.18900 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 443ºC at 760 mmHg |
|---|---|
| Density | 1.25g/cm3 |
| Flash Point | 241.6ºC |
Frequently Asked Questions
What is the CAS number of 1,5-dioxaspiro[5.5]undecane-2,4-dione?
The CAS number of 1,5-dioxaspiro[5.5]undecane-2,4-dione is 1658-27-1.
What are the molecular formula and molecular weight of 1,5-dioxaspiro[5.5]undecane-2,4-dione?
1,5-dioxaspiro[5.5]undecane-2,4-dione has molecular formula C9H12O4 and molecular weight 184.18900 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-dioxaspiro[5.5]undecane-2,4-dione (CAS 1658-27-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1025339-3 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.