5-hydroxy-3,4-dihydro-2H-isoquinolin-1-one

5-羟基-3,4-二氢-2H-异喹啉-1-酮

Also known as: 3,4-dihydro-5-hydroxy-1(2H)-isoquinolinone, 1(2H)-isoquinolinone, 3,4-dihydro-5-hydroxy-, 5-hydroxy-3,4-dihydroisoquinolin-1(2H)-one, 5-hydroxy-3,4-dihydro-1(2H)-isoquinolinone

5-hydroxy-3,4-dihydro-2H-isoquinolin-1-one (CAS 56469-02-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H9NO2 and a molecular weight of 163.173 g/mol. It is also known as 3,4-dihydro-5-hydroxy-1(2H)-isoquinolinone, 1(2H)-isoquinolinone, 3,4-dihydro-5-hydroxy- and 5-hydroxy-3,4-dihydroisoquinolin-1(2H)-one. Key properties include a boiling point of 473.8±45.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 240.4±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 56469-02-4
Jingsj CID: J-871947-6
Molecular Formula: C₉H₉NO₂
Chinese Name: 5-羟基-3,4-二氢-2H-异喹啉-1-酮
Molecular Weight: 163.173 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	473.8±45.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	240.4±28.7 °C

Frequently Asked Questions

What is the CAS number of 5-hydroxy-3,4-dihydro-2H-isoquinolin-1-one?

The CAS number of 5-hydroxy-3,4-dihydro-2H-isoquinolin-1-one is 56469-02-4.

What are the molecular formula and molecular weight of 5-hydroxy-3,4-dihydro-2H-isoquinolin-1-one?

5-hydroxy-3,4-dihydro-2H-isoquinolin-1-one has molecular formula C9H9NO2 and molecular weight 163.173 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "5-hydroxy-3,4-dihydro-2H-isoquinolin-1-one (CAS 56469-02-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-871947-6 (accessed 2026-10-22).

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