2-Cyclopenten-1-one ethylene ketal

2-环戊烯-1-酮缩乙醛

Also known as: 1,4-Dioxaspiro[4.4]non-6-ene, 1,4-Dioxaspiro[4.4]nonane-6-ene, 2-Cyclopenten-1-one ethylene acetal, 2-Cyclopentenone ethylene ketal, NSC 160533, EINECS 211-783-5, MFCD00005408, cyclopent-2-en-1-one ethylene ketal, cyclopent-2-enone ethylene ketal

2-Cyclopenten-1-one ethylene ketal (CAS 695-56-7) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C7H10O2 and a molecular weight of 126.15300 g/mol. It is also known as 1,4-Dioxaspiro[4.4]non-6-ene, 1,4-Dioxaspiro[4.4]nonane-6-ene and 2-Cyclopenten-1-one ethylene acetal. Key properties include a boiling point of 59-62ºC16 mm Hg(lit.), a density of 1.067 g/mL at 25ºC(lit.) and a flash point of 112 °F. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 695-56-7
Jingsj CID: J-30640-3
Molecular Formula: C₇H₁₀O₂
Chinese Name: 2-环戊烯-1-酮缩乙醛
Molecular Weight: 126.15300 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	59-62ºC16 mm Hg(lit.)
Density	1.067 g/mL at 25ºC(lit.)
Flash Point	112 °F

GHS Safety & Compliance

FlammableSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2-Cyclopenten-1-one ethylene ketal?

The CAS number of 2-Cyclopenten-1-one ethylene ketal is 695-56-7.

What are the molecular formula and molecular weight of 2-Cyclopenten-1-one ethylene ketal?

2-Cyclopenten-1-one ethylene ketal has molecular formula C7H10O2 and molecular weight 126.15300 g/mol.

Is 2-Cyclopenten-1-one ethylene ketal hazardous?

2-Cyclopenten-1-one ethylene ketal has GHS signal word Warning.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2-Cyclopenten-1-one ethylene ketal (CAS 695-56-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30640-3 (accessed 2026-10-23).

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