1,6-Dioxaspiro[2.5]octane

Also known as: Tetrahydrospiro[oxirane-2,4'-[4H]pyran], 4-Tetrahydropyranylidene oxide, 1,6-Dioxaspiro(2.5)octane

1,6-Dioxaspiro[2.5]octane (CAS 185-72-8) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H10O2 and a molecular weight of 114.142 g/mol. Key properties include a boiling point of 158.4±8.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 48.5±12.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 185-72-8
Jingsj CID: J-1448683-0
Molecular Formula: C₆H₁₀O₂
Molecular Weight: 114.142 g/mol
Category: Aliphatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	158.4±8.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	48.5±12.3 °C
Exact Mass	114.068077
PSA	21.76000
LogP	-0.45
Vapor Pressure	3.4±0.3 mmHg at 25°C
Refractive Index	1.478
Storage Conditions	2-8°C

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 1,6-Dioxaspiro[2.5]octane?

The CAS number of 1,6-Dioxaspiro[2.5]octane is 185-72-8.

What are the molecular formula and molecular weight of 1,6-Dioxaspiro[2.5]octane?

1,6-Dioxaspiro[2.5]octane has molecular formula C6H10O2 and molecular weight 114.142 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "1,6-Dioxaspiro[2.5]octane (CAS 185-72-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1448683-0 (accessed 2026-11-09).

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