1,3-Dioxolane
Also known as: Ethylene glycol formal, Glycol formal, Dioxolane, 1,3-Dioxacyclopentane, Formaldehyde ethylene acetal, 1,3-Dioxole, dihydro-
1,3-Dioxolane (CAS 646-06-0) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C3H6O2 and a molecular weight of 74.078 g/mol. Key properties include a melting point of −95 °C(lit.), a boiling point of 75.6±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 1.7±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 646-06-0
- Jingsj CID
- J-49539-6
- Molecular Formula
- C3H6O2
- Molecular Weight
- 74.078 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | −95 °C(lit.) |
|---|---|
| Boiling Point | 75.6±0.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 1.7±0.0 °C |
| Exact Mass | 74.036781 |
| PSA | 18.46000 |
| LogP | -0.73 |
| Additional Property | 2.6 (vs air) |
| Vapor Pressure | 114.6±0.1 mmHg at 25°C |
| Refractive Index | 1.397 |
| Additional Property | SOLUBLE |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H319 — Causes serious eye irritation
Customs & Trade Information
| HS Code | 29329970 |
|---|
Frequently Asked Questions
What is the CAS number of 1,3-Dioxolane?
The CAS number of 1,3-Dioxolane is 646-06-0.
What are the molecular formula and molecular weight of 1,3-Dioxolane?
1,3-Dioxolane has molecular formula C3H6O2 and molecular weight 74.078 g/mol.
Is 1,3-Dioxolane hazardous?
1,3-Dioxolane has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 1,3-Dioxolane?
For 1,3-Dioxolane, Upstream Products: ch3cho, 2-Ethoxy-1,3-dioxolane, Ethylene glycol; Downstream Products: 2-Methoxy-1,3-dioxolane, Trimethyl orthoformate, Methyl 6-methylnicotinate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,3-Dioxolane (CAS 646-06-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49539-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.