2-Oxaspiro[4.4]nonane-1,3-dione

2-氧杂螺[4.4]壬烷-1,3-二酮

Also known as: 1,3-Dioxo-2-oxaspiro[4.4]nonane, 3-oxaspiro[4.4]nonane-2,4-dione, cyclopentan-1-acetic-1-carboxylic anhydride

2-Oxaspiro[4.4]nonane-1,3-dione (CAS 5623-90-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H10O3 and a molecular weight of 154.16300 g/mol. It is also known as 1,3-Dioxo-2-oxaspiro[4.4]nonane, 3-oxaspiro[4.4]nonane-2,4-dione and cyclopentan-1-acetic-1-carboxylic anhydride. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5623-90-5
Jingsj CID
J-1466159-2
Molecular Formula
C8H10O3
Chinese Name
2-氧杂螺[4.4]壬烷-1,3-二酮
Molecular Weight
154.16300 g/mol
Category
Ketones
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of 2-Oxaspiro[4.4]nonane-1,3-dione?

The CAS number of 2-Oxaspiro[4.4]nonane-1,3-dione is 5623-90-5.

What are the molecular formula and molecular weight of 2-Oxaspiro[4.4]nonane-1,3-dione?

2-Oxaspiro[4.4]nonane-1,3-dione has molecular formula C8H10O3 and molecular weight 154.16300 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Oxaspiro[4.4]nonane-1,3-dione (CAS 5623-90-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1466159-2 (accessed 2026-10-23).

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