2,2'-Trimethylenebis-1,3-dioxolane

2,2'-三亚甲基二-1,3-二噁戊环

Also known as: 2,2'-(1,3-Propanediyl)bis-1,3-dioxolane, 2,2'-Trimethylenebis(1,3-dioxolane), 1,3-Bis(1,3-dioxolan-2-yl)propane, 2-[3-(1,3-dioxolan-2-yl)propyl]-1,3-dioxolane, Glutaric dialdehyde bis(ethylene acetal), Pentanedial cyclic bis(ethylene acetal)

2,2'-Trimethylenebis-1,3-dioxolane (CAS 6543-04-0) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C9H16O4 and a molecular weight of 188.22100 g/mol. It is also known as 2,2'-(1,3-Propanediyl)bis-1,3-dioxolane, 2,2'-Trimethylenebis(1,3-dioxolane) and 1,3-Bis(1,3-dioxolan-2-yl)propane. Key properties include a boiling point of 264.8ºC at 760 mmHg, a density of 1.108 g/mL at 25ºC(lit.) and a flash point of >230 °F. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6543-04-0
Jingsj CID
J-496-9
Molecular Formula
C9H16O4
Chinese Name
2,2'-三亚甲基二-1,3-二噁戊环
Molecular Weight
188.22100 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point264.8ºC at 760 mmHg
Density1.108 g/mL at 25ºC(lit.)
Flash Point>230 °F

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2,2'-Trimethylenebis-1,3-dioxolane?

The CAS number of 2,2'-Trimethylenebis-1,3-dioxolane is 6543-04-0.

What are the molecular formula and molecular weight of 2,2'-Trimethylenebis-1,3-dioxolane?

2,2'-Trimethylenebis-1,3-dioxolane has molecular formula C9H16O4 and molecular weight 188.22100 g/mol.

Is 2,2'-Trimethylenebis-1,3-dioxolane hazardous?

2,2'-Trimethylenebis-1,3-dioxolane has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "2,2'-Trimethylenebis-1,3-dioxolane (CAS 6543-04-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-496-9 (accessed 2026-10-23).

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