3,4-Dihydro-2H-benzo[b]oxepin-5-one

Also known as: 2,3,4,5-Tetrahydro-1-benzoxepin-5-one, 3,4-Dihydrobenzo[b]oxepin-5(2H)-one, 3,4-dihydro-2H-1-benzoxepin-5-one, 1-Benzoxepin-5(2H)-one, 3,4-dihydro-, 2,3,4,5-tetrahydro-1-benzoxepin-5-one, 3,4-Dihydro-1-benzoxepin-5(2H)-one, Homochromanone-5

3,4-Dihydro-2H-benzo[b]oxepin-5-one (CAS 6786-30-7) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C10H10O2 and a molecular weight of 162.18500 g/mol. Key properties include a boiling point of 286.6ºC at 760 mmHg, a density of 1.145g/cm3 and a flash point of 133.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 6786-30-7
Jingsj CID: J-1100146-0
Molecular Formula: C₁₀H₁₀O₂
Molecular Weight: 162.18500 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	286.6ºC at 760 mmHg
Density	1.145g/cm3
Flash Point	133.7ºC
Exact Mass	162.06800
PSA	26.30000
LogP	2.04190
Refractive Index	1.545
Storage Conditions	2-8°C

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 3,4-Dihydro-2H-benzo[b]oxepin-5-one?

The CAS number of 3,4-Dihydro-2H-benzo[b]oxepin-5-one is 6786-30-7.

What are the molecular formula and molecular weight of 3,4-Dihydro-2H-benzo[b]oxepin-5-one?

3,4-Dihydro-2H-benzo[b]oxepin-5-one has molecular formula C10H10O2 and molecular weight 162.18500 g/mol.

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. "3,4-Dihydro-2H-benzo[b]oxepin-5-one (CAS 6786-30-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1100146-0 (accessed 2026-11-09).

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