7-Chloro-1,2,3,4-tetrahydro-1-(2-methyl-4-nitrobenzoyl)-5H-1-benzazepin-5-one

Also known as: 7-Chloro-1-(2-methyl-4-nitrobenzoyl)-3,4-dihydro-1H-benzo[b]azepin-5(2H)-one, Tolvaptan Impurity 12, Tolvaptan InterMediates, TFPT-09

7-Chloro-1,2,3,4-tetrahydro-1-(2-methyl-4-nitrobenzoyl)-5H-1-benzazepin-5-one (CAS 137982-91-3) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C18H15ClN2O4 and a molecular weight of 358.776 g/mol. Key properties include a boiling point of 573.3±50.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 300.5±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 137982-91-3
Jingsj CID: J-1075996-3
Molecular Formula: C₁₈H₁₅ClN₂O₄
Molecular Weight: 358.776 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	573.3±50.0 °C at 760 mmHg
Density	1.4±0.1 g/cm3
Flash Point	300.5±30.1 °C
Exact Mass	358.072021
PSA	83.20000
LogP	3.74
Vapor Pressure	0.0±1.6 mmHg at 25°C
Refractive Index	1.635

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 7-Chloro-1,2,3,4-tetrahydro-1-(2-methyl-4-nitrobenzoyl)-5H-1-benzazepin-5-one?

The CAS number of 7-Chloro-1,2,3,4-tetrahydro-1-(2-methyl-4-nitrobenzoyl)-5H-1-benzazepin-5-one is 137982-91-3.

What are the molecular formula and molecular weight of 7-Chloro-1,2,3,4-tetrahydro-1-(2-methyl-4-nitrobenzoyl)-5H-1-benzazepin-5-one?

7-Chloro-1,2,3,4-tetrahydro-1-(2-methyl-4-nitrobenzoyl)-5H-1-benzazepin-5-one has molecular formula C18H15ClN2O4 and molecular weight 358.776 g/mol.

What are the upstream and downstream products of 7-Chloro-1,2,3,4-tetrahydro-1-(2-methyl-4-nitrobenzoyl)-5H-1-benzazepin-5-one?

For 7-Chloro-1,2,3,4-tetrahydro-1-(2-methyl-4-nitrobenzoyl)-5H-1-benzazepin-5-one, Upstream Products: 2-Methyl-4-nitrobenzoyl chloride, 7-chloro-1,2,3,4-tetrahydro-1-benzazepin-5-one, Methyl 5-chloroanthranilate; Downstream Products: 1-(4-Amino-2-methylbenzoyl)-7-chloro-1,2,3,4-tetrahydro-5H-1-benzazepin-5-one, N-[4-[(7-Chloro-2,3,4,5-tetrahydro-5-oxo-1H-1-benzazepin-1-yl)carbonyl]-3-methylphenyl]-2-methylbenzamide, Tolvaptan.

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. "7-Chloro-1,2,3,4-tetrahydro-1-(2-methyl-4-nitrobenzoyl)-5H-1-benzazepin-5-one (CAS 137982-91-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1075996-3 (accessed 2026-11-09).

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