1,7-Dioxaspiro[5.5]undecane

Also known as: Olean, Olive-fly ketal, Spiroketal, Eco-Trap, 1,7-dioxaspiro[5.5]undecane, MFCD00011578, EINECS 205-870-7

1,7-Dioxaspiro[5.5]undecane (CAS 180-84-7) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H16O2 and a molecular weight of 156.22200 g/mol. Key properties include a boiling point of 193 °C750 mm Hg(lit.), a density of 1.02 g/mL at 25 °C(lit.) and a flash point of 63.9 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.: 180-84-7
Jingsj CID: J-1990586-3
Molecular Formula: C₉H₁₆O₂
Molecular Weight: 156.22200 g/mol
Category: Aliphatic Hydrocarbons
Last updated: 11/2/2026

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Physicochemical Properties

Boiling Point	193 °C750 mm Hg(lit.)
Density	1.02 g/mL at 25 °C(lit.)
Flash Point	63.9 °C
Exact Mass	156.11500
PSA	18.46000
LogP	2.08370
Vapor Pressure	0.645mmHg at 25°C
Refractive Index	n20/D 1.464(lit.)

Customs & Trade Information

HS Code	2932999099
Summary	2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 1,7-Dioxaspiro[5.5]undecane?

The CAS number of 1,7-Dioxaspiro[5.5]undecane is 180-84-7.

What are the molecular formula and molecular weight of 1,7-Dioxaspiro[5.5]undecane?

1,7-Dioxaspiro[5.5]undecane has molecular formula C9H16O2 and molecular weight 156.22200 g/mol.

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

Last updated: 11/2/2026

How to cite: Jingsj. "1,7-Dioxaspiro[5.5]undecane (CAS 180-84-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990586-3 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.