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3,4-Dihydro-2H-1,5-benzodioxepine

3,4-二氢-2H-1,5-苯并二氧环庚烷

Also known as: 1,2-Trimethylenedioxybenzene, 3,4-Dihydro-2H-1,5-benzodioxepin, 3,4-Dihydro-2H-benzo[b][1,4]dioxepine, 1,5-Benzodioxepane, Pyrocatechol trimethylene ether, 3,4-Dihydro-2H-1,5-benzodioxepine

3,4-Dihydro-2H-1,5-benzodioxepine (CAS 7216-18-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H10O2 and a molecular weight of 150.17400 g/mol. It is also known as 1,2-Trimethylenedioxybenzene, 3,4-Dihydro-2H-1,5-benzodioxepin and 3,4-Dihydro-2H-benzo[b][1,4]dioxepine. Key properties include a melting point of 14-15ºC, a boiling point of 221.011ºC at 760 mmHg, a density of 1.103g/cm3 and a flash point of 91.549ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
7216-18-4
Jingsj CID
J-2606-4
Molecular Formula
C9H10O2
Chinese Name
3,4-二氢-2H-1,5-苯并二氧环庚烷
Molecular Weight
150.17400 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point14-15ºC
Boiling Point221.011ºC at 760 mmHg
Density1.103g/cm3
Flash Point91.549ºC

Frequently Asked Questions

What is the CAS number of 3,4-Dihydro-2H-1,5-benzodioxepine?

The CAS number of 3,4-Dihydro-2H-1,5-benzodioxepine is 7216-18-4.

What are the molecular formula and molecular weight of 3,4-Dihydro-2H-1,5-benzodioxepine?

3,4-Dihydro-2H-1,5-benzodioxepine has molecular formula C9H10O2 and molecular weight 150.17400 g/mol.

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

Last updated:

How to cite: Jingsj. "3,4-Dihydro-2H-1,5-benzodioxepine (CAS 7216-18-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-2606-4 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.