1,3-Dioxane
Also known as: 1,3-Dioxacyclohexane, m-Dioxane, 1,3-Propanediol formal, Trimethylene glycol methylene ether, meta-Dioxane
1,3-Dioxane (CAS 505-22-6) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C4H8O2 and a molecular weight of 88.10510 g/mol. Key properties include a melting point of -42ºC, a boiling point of 105ºC, a density of 1.0342 and a flash point of 15.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H302 — Harmful if swallowed and H312 — Harmful in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 505-22-6
- Jingsj CID
- J-30220-5
- Molecular Formula
- C4H8O2
- Molecular Weight
- 88.10510 g/mol
- Category
- Organic Compounds
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -42ºC |
|---|---|
| Boiling Point | 105ºC |
| Density | 1.0342 |
| Flash Point | 15.0 °C |
| Exact Mass | 88.05240 |
| PSA | 18.46000 |
| LogP | 0.38080 |
| Refractive Index | n20/D 1.418(lit.) |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H332 — Harmful if inhaled
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. 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 1,3-Dioxane?
The CAS number of 1,3-Dioxane is 505-22-6.
What are the molecular formula and molecular weight of 1,3-Dioxane?
1,3-Dioxane has molecular formula C4H8O2 and molecular weight 88.10510 g/mol.
Is 1,3-Dioxane hazardous?
1,3-Dioxane has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H302 — Harmful if swallowed; H312 — Harmful in contact with skin.
What are the upstream and downstream products of 1,3-Dioxane?
For 1,3-Dioxane, Upstream Products: Decanal, 1,3-Propanediol, 1,3,5-trioxane; Downstream Products: 1,3-Propanediol, 3-Methoxy-1-propanol, 1-Propanol.
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-Dioxane (CAS 505-22-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30220-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.