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Isoindolin-1-one

Also known as: 2,3-Dihydro-1H-isoindol-1-one, 1-Isoindolinone, Phthalimidine, 1,3-Dihydro-2H-isoindole-1-one, 2H-Isoindol-1(3H)-one, oxoisoindole

Isoindolin-1-one (CAS 480-91-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H7NO and a molecular weight of 133.15 g/mol. Key properties include a melting point of 151 °C, a boiling point of 380.6±22.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 220.2±7.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
480-91-1
Jingsj CID
J-1987192-2
Molecular Formula
C8H7NO
Molecular Weight
133.15 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point151 °C
Boiling Point380.6±22.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point220.2±7.3 °C
Exact Mass133.052765
PSA29.10000
LogP0.29
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.586

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 Isoindolin-1-one?

The CAS number of Isoindolin-1-one is 480-91-1.

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

Isoindolin-1-one has molecular formula C8H7NO and molecular weight 133.15 g/mol.

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

For Isoindolin-1-one, Upstream Products: Methyl 2-cyanobenzoate, 2-Carboxybenzaldehyde, 2-Bromobenzylamine; Downstream Products: Isoindoline, Benzopinacole, 6-Bromoisoindolin-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. "Isoindolin-1-one (CAS 480-91-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1987192-2 (accessed 2026-11-09).

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