3,4-dihydro-1H-1-benzazepine-2,5-dione

Also known as: 1H-[1]-benzazepine-2,5(3H,4H)-dione, 1H-[1]-Benzazepin-2,5(3H,4H)-dione, 2,3,4,5-tetrahydro-1H-1-benzazepine-2,5-dione, 3,4-dihydro-1H-benzo[b]azepine-2,5-dione, 3,4-Dihydrobenzo[b]azepine-2,5-dione, NSC 641163

3,4-dihydro-1H-1-benzazepine-2,5-dione (CAS 16511-38-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C10H9NO2 and a molecular weight of 175.18400 g/mol. Key properties include a melting point of 177-179 °C, a boiling point of 393.5ºC at 760 mmHg, a density of 1.224g/cm3 and a flash point of 184.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 16511-38-9
Jingsj CID: J-1525098-3
Molecular Formula: C₁₀H₉NO₂
Molecular Weight: 175.18400 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	177-179 °C
Boiling Point	393.5ºC at 760 mmHg
Density	1.224g/cm3
Flash Point	184.9ºC
Exact Mass	175.06300
PSA	46.17000
LogP	1.73960
Vapor Pressure	2.12E-06mmHg at 25°C
Refractive Index	1.565

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen 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-1H-1-benzazepine-2,5-dione?

The CAS number of 3,4-dihydro-1H-1-benzazepine-2,5-dione is 16511-38-9.

What are the molecular formula and molecular weight of 3,4-dihydro-1H-1-benzazepine-2,5-dione?

3,4-dihydro-1H-1-benzazepine-2,5-dione has molecular formula C10H9NO2 and molecular weight 175.18400 g/mol.

What are the upstream and downstream products of 3,4-dihydro-1H-1-benzazepine-2,5-dione?

For 3,4-dihydro-1H-1-benzazepine-2,5-dione, Upstream Products: Diethyl cyanophosphonate, 1,4-Naphthoquinone, 4,5-Dihydro-1H-benzo[b]azepin-2(3H)-one; Downstream Products: Alsterpaullone, Kenpaullone.

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-1H-1-benzazepine-2,5-dione (CAS 16511-38-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1525098-3 (accessed 2026-11-09).

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