1,3-Diazaspiro[4.4]nonane-2,4-dione
1,3-二氮杂螺[4.4]壬烷-2,4-二酮
Also known as: 1,3-Diazaspiro[4.4]nonane-2,4-dione, 5,5-Tetramethylenehydantoin, 5,5'-Cyclopentanespirohydantoin, Hydantoin-5-spirocyclopentane, Spiro[cyclopentane-1,5'-hydantoin], NSC 1024, Ba 2839
1,3-Diazaspiro[4.4]nonane-2,4-dione (CAS 699-51-4) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C7H10N2O2 and a molecular weight of 154.167 g/mol. It is also known as 5,5-Tetramethylenehydantoin, 5,5'-Cyclopentanespirohydantoin and Hydantoin-5-spirocyclopentane. Key properties include a melting point of 199-205°C and a density of 1.3±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 699-51-4
- Jingsj CID
- J-1511154-8
- Molecular Formula
- C7H10N2O2
- Chinese Name
- 1,3-二氮杂螺[4.4]壬烷-2,4-二酮
- Molecular Weight
- 154.167 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 199-205°C |
|---|---|
| Density | 1.3±0.1 g/cm3 |
Frequently Asked Questions
What is the CAS number of 1,3-Diazaspiro[4.4]nonane-2,4-dione?
The CAS number of 1,3-Diazaspiro[4.4]nonane-2,4-dione is 699-51-4.
What are the molecular formula and molecular weight of 1,3-Diazaspiro[4.4]nonane-2,4-dione?
1,3-Diazaspiro[4.4]nonane-2,4-dione has molecular formula C7H10N2O2 and molecular weight 154.167 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,3-Diazaspiro[4.4]nonane-2,4-dione (CAS 699-51-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1511154-8 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.