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5-Methoxyisoindolin-1-one

Also known as: 5-Methoxy-2,3-dihydro-1H-isoindol-1-one, 5-Methoxy-1-isoindolinone, 2,3-Dihydro-5-methoxy-1H-isoindol-1-one, 5-Methoxy-2,3-dihydroisoindol-1-one

5-Methoxyisoindolin-1-one (CAS 22246-66-8) 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. Key properties include a boiling point of 439.2±45.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 219.4±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
22246-66-8
Jingsj CID
J-1360421-2
Molecular Formula
C9H9NO2
Molecular Weight
163.173 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point439.2±45.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point219.4±28.7 °C
Exact Mass163.063324
PSA38.33000
LogP0.20
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.565

Customs & Trade Information

HS Code2933790090
Summary2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 5-Methoxyisoindolin-1-one?

The CAS number of 5-Methoxyisoindolin-1-one is 22246-66-8.

What are the molecular formula and molecular weight of 5-Methoxyisoindolin-1-one?

5-Methoxyisoindolin-1-one has molecular formula C9H9NO2 and molecular weight 163.173 g/mol.

What are the upstream and downstream products of 5-Methoxyisoindolin-1-one?

For 5-Methoxyisoindolin-1-one, Upstream Products: Methyl 2-(bromomethyl)-5-methoxybenzoate, methyl 2-cyano-5-methoxybenzoate, 5-methoxyisoindoline-1,3-dione; Downstream Products: 1H-Isoindol-1-one, 2,3-dihydro-6-hydroxy-, (6-methoxy-1-oxoisoindolin-2-yl)methyl 2,2-dimethylpropanoate.

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

Last updated:

How to cite: Jingsj. "5-Methoxyisoindolin-1-one (CAS 22246-66-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1360421-2 (accessed 2026-11-09).

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