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4-Hydroxy-2,3-dihydroisoindol-1-one

Also known as: 1H-Isoindol-1-one, 2,3-dihydro-4-hydroxy-, 1H-Isoindol-1-one, 2,3-dihydro-4-hydroxy- (9CI), 2,3-Dihydro-4-hydroxy-1H-isoindol-1-one, 2,3-Dihydro-4-hydroxy-1-oxo-1H-isoindole, 4-Hydroxy-1-isoindolinone, 4-hydroxyisoindolin-1-one

4-Hydroxy-2,3-dihydroisoindol-1-one (CAS 366453-21-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H7NO2 and a molecular weight of 149.147 g/mol. Key properties include a boiling point of 476.5±45.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 242.0±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
366453-21-6
Jingsj CID
J-1085935-5
Molecular Formula
C8H7NO2
Molecular Weight
149.147 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point476.5±45.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point242.0±28.7 °C
Exact Mass149.047684
PSA52.82000
LogP-0.45
Vapor Pressure0.0±1.2 mmHg at 25°C
Refractive Index1.634
Storage Conditions2-8°C

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 4-Hydroxy-2,3-dihydroisoindol-1-one?

The CAS number of 4-Hydroxy-2,3-dihydroisoindol-1-one is 366453-21-6.

What are the molecular formula and molecular weight of 4-Hydroxy-2,3-dihydroisoindol-1-one?

4-Hydroxy-2,3-dihydroisoindol-1-one has molecular formula C8H7NO2 and molecular weight 149.147 g/mol.

What are the upstream and downstream products of 4-Hydroxy-2,3-dihydroisoindol-1-one?

For 4-Hydroxy-2,3-dihydroisoindol-1-one, Upstream Products: 4-Methoxyisoindolin-1-one, Salicylaldehyde, Methyl 3-methoxy-2-methylbenzoate; Downstream Products: Isoindolin-1-one.

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

Last updated:

How to cite: Jingsj. "4-Hydroxy-2,3-dihydroisoindol-1-one (CAS 366453-21-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1085935-5 (accessed 2026-11-09).

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