4,5-dihydrobenzo[e][1,3]oxazepin-3(1H)-one

Also known as: 4,5-dihydro-2,4-benzoxazepin-3(1H)-one, 2,4-Benzoxazepin-3(1H)-one, 4,5-dihydro-, 4,5-dihydro-1H-2,4-benzoxazepin-3-one, 4,5-dihydro-1H-benzo[e][1,3]oxazepin-3-one

4,5-dihydrobenzo[e][1,3]oxazepin-3(1H)-one (CAS 39976-24-4) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H9NO2 and a molecular weight of 163.17300 g/mol. Key properties include a boiling point of 424.624ºC at 760 mmHg, a density of 1.186 and a flash point of 210.605ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 39976-24-4
Jingsj CID: J-1144607-4
Molecular Formula: C₉H₉NO₂
Molecular Weight: 163.17300 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	424.624ºC at 760 mmHg
Density	1.186
Flash Point	210.605ºC
Exact Mass	163.06300
PSA	41.82000
LogP	1.06640

Frequently Asked Questions

What is the CAS number of 4,5-dihydrobenzo[e][1,3]oxazepin-3(1H)-one?

The CAS number of 4,5-dihydrobenzo[e][1,3]oxazepin-3(1H)-one is 39976-24-4.

What are the molecular formula and molecular weight of 4,5-dihydrobenzo[e][1,3]oxazepin-3(1H)-one?

4,5-dihydrobenzo[e][1,3]oxazepin-3(1H)-one has molecular formula C9H9NO2 and molecular weight 163.17300 g/mol.

What are the upstream and downstream products of 4,5-dihydrobenzo[e][1,3]oxazepin-3(1H)-one?

For 4,5-dihydrobenzo[e][1,3]oxazepin-3(1H)-one, Upstream Products: (2-(Aminomethyl)phenyl)methanol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4,5-dihydrobenzo[e][1,3]oxazepin-3(1H)-one (CAS 39976-24-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1144607-4 (accessed 2026-11-09).

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