1,4-Benzodioxane
Also known as: 1,4-Benzodioxan, 2,3-Dihydro-1,4-benzodioxine, 2,3-Dihydro-1,4-benzodioxin, 1,2-Ethylenedioxybenzene, Pyrocatechol ethylene ether, Benzo-1,4-dioxane, 1,4-Benzdioxan, 1,4-Benzodioxin, 2,3-dihydro-
1,4-Benzodioxane (CAS 493-09-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H8O2 and a molecular weight of 136.148 g/mol. Key properties include a boiling point of 248.1±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 87.8±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 493-09-4
- Jingsj CID
- J-42277-5
- Molecular Formula
- C8H8O2
- Molecular Weight
- 136.148 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 248.1±0.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 87.8±0.0 °C |
| Exact Mass | 136.052429 |
| PSA | 18.46000 |
| LogP | 1.88 |
| Vapor Pressure | 0.0±0.4 mmHg at 25°C |
| Refractive Index | 1.538 |
| Additional Property | insoluble |
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 1,4-Benzodioxane?
The CAS number of 1,4-Benzodioxane is 493-09-4.
What are the molecular formula and molecular weight of 1,4-Benzodioxane?
1,4-Benzodioxane has molecular formula C8H8O2 and molecular weight 136.148 g/mol.
What are the upstream and downstream products of 1,4-Benzodioxane?
For 1,4-Benzodioxane, Upstream Products: Catechol, 1,2-Dibromoethane, 2,3-dibromo-2,3-dihydro-1,4-benzodioxine; Downstream Products: 4-(2,3-dihydro-1,4-benzodioxin-6-yl)-4-oxobutanoic acid, 7-Nitro-2,3-dihydro-1,4-benzodioxine-6-carboxylic acid, 6-iodo-1,4-benzodioxane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,4-Benzodioxane (CAS 493-09-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42277-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.