1,4-Dihydro-3(2H)-isoquinolinone

1,4-二氢-3(2H)-异喹啉酮

Also known as: 1,4-Dihydro-2H-isoquinolin-3-one, 2,4-dihydro-1H-isoquinolin-3-one, 1,2-dihydroisoquinolin-3(4H)-one, 1,2-dihydroisoquinolin-3-one, 1,4-dihydroisoquinolin-3(2H)-one, 3(2H)-Isoquinolinone, 1,4-dihydro-

1,4-Dihydro-3(2H)-isoquinolinone (CAS 24331-94-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H9NO and a molecular weight of 147.17400 g/mol. It is also known as 1,4-Dihydro-2H-isoquinolin-3-one, 2,4-dihydro-1H-isoquinolin-3-one and 1,2-dihydroisoquinolin-3(4H)-one. Key properties include a boiling point of 370.6ºC at 760mmHg, a density of 1.142g/cm3 and a flash point of 215.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
24331-94-0
Jingsj CID
J-33594-4
Molecular Formula
C9H9NO
Chinese Name
1,4-二氢-3(2H)-异喹啉酮
Molecular Weight
147.17400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point370.6ºC at 760mmHg
Density1.142g/cm3
Flash Point215.9ºC

Frequently Asked Questions

What is the CAS number of 1,4-Dihydro-3(2H)-isoquinolinone?

The CAS number of 1,4-Dihydro-3(2H)-isoquinolinone is 24331-94-0.

What are the molecular formula and molecular weight of 1,4-Dihydro-3(2H)-isoquinolinone?

1,4-Dihydro-3(2H)-isoquinolinone has molecular formula C9H9NO and molecular weight 147.17400 g/mol.

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

Last updated:

How to cite: Jingsj. "1,4-Dihydro-3(2H)-isoquinolinone (CAS 24331-94-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33594-4 (accessed 2026-10-22).

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