3a,4,7,7a-tetrahydro-4,7-epoxyisobenzofuran-1,3-dione
Also known as: 4,10-dioxatricyclo[5.2.1.0(2,6)]dec-8-ene-3,5-dione, 3,6-endoxo-1,2,3,6-tetrahydrophthalic anhydride, 3,6-oxo-1,2,3,6-tetrahydrophthalic anhydride, 7-oxabicyclo[2.2.1]-5-heptene-2,3-dicarboxylic anhydride, 7-oxanorborna-2-ene-5,6-dicarboxylic anhydride, 3a,4,7,7a-tetrahydro-4,7-epoxy-1,3-isobenzofurandione, 4,7-epoxyisobenzofuran-1,3-dione, 3a,4,7,7a-tetrahydro-, akos 92618, timtec-bb sbb007745
3a,4,7,7a-tetrahydro-4,7-epoxyisobenzofuran-1,3-dione (CAS 5426-09-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H6O4 and a molecular weight of 166.13 g/mol. Key properties include a boiling point of 372.0±42.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 172.2±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5426-09-5
- Jingsj CID
- J-1974285-9
- Molecular Formula
- C8H6O4
- Molecular Weight
- 166.13 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 372.0±42.0 °C at 760 mmHg |
|---|---|
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 172.2±27.9 °C |
| Exact Mass | 166.026611 |
| PSA | 52.60000 |
| LogP | -0.77 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.584 |
Activity & Biological Data
| Additional Information | [1]. Robak T, Robak P. Purine nucleoside analogs in the treatment of rarer chronic lymphoid leukemias. Curr Pharm Des. 2012;18(23):3373-88. |
|---|
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 3a,4,7,7a-tetrahydro-4,7-epoxyisobenzofuran-1,3-dione?
The CAS number of 3a,4,7,7a-tetrahydro-4,7-epoxyisobenzofuran-1,3-dione is 5426-09-5.
What are the molecular formula and molecular weight of 3a,4,7,7a-tetrahydro-4,7-epoxyisobenzofuran-1,3-dione?
3a,4,7,7a-tetrahydro-4,7-epoxyisobenzofuran-1,3-dione has molecular formula C8H6O4 and molecular weight 166.13 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3a,4,7,7a-tetrahydro-4,7-epoxyisobenzofuran-1,3-dione (CAS 5426-09-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1974285-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.