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Dicyclopentadiene diepoxide

Also known as: Dicyclopentadiene dioxide, Bicyclopentadiene dioxide, Bicyclopentadiene diepoxide, Bicyelopentadiene dioxide, 1,2:5,6-Diepoxyhexahydro-4,7-methanoindane, 4,7-Methanoindan,1,2:5,6-diepoxyhexahydro-, ep207, unox207, unoxepoxide207

Dicyclopentadiene diepoxide (CAS 81-21-0) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C10H12O2 and a molecular weight of 164.201 g/mol. Key properties include a melting point of 185-189 °C(lit.), a boiling point of 326.3±10.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 134.4±12.8 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
81-21-0
Jingsj CID
J-8700-5
Molecular Formula
C10H12O2
Molecular Weight
164.201 g/mol
Category
Ethers
Last updated
8/21/2026
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Physicochemical Properties

Melting Point185-189 °C(lit.)
Boiling Point326.3±10.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point134.4±12.8 °C
Exact Mass164.083725
PSA25.06000
LogP1.01
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.615

GHS Safety & Compliance

Acute ToxicitySignal word: Danger
  • H301 — Toxic if swallowed
  • H319 — Causes serious eye irritation

Frequently Asked Questions

What is the CAS number of Dicyclopentadiene diepoxide?

The CAS number of Dicyclopentadiene diepoxide is 81-21-0.

What are the molecular formula and molecular weight of Dicyclopentadiene diepoxide?

Dicyclopentadiene diepoxide has molecular formula C10H12O2 and molecular weight 164.201 g/mol.

Is Dicyclopentadiene diepoxide hazardous?

Dicyclopentadiene diepoxide has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H319 — Causes serious eye irritation.

What are the upstream and downstream products of Dicyclopentadiene diepoxide?

For Dicyclopentadiene diepoxide, Upstream Products: Tricyclo[5.2.1.02,6]deca-3,8-diene.

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

Last updated:

How to cite: Jingsj. "Dicyclopentadiene diepoxide (CAS 81-21-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8700-5 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.