4-Bromo-2-methylisoindolin-1-one

Also known as: 4-bromo-2-methyl-2,3-dihydro-1H-isoindol-1-one, 4-bromo-2-methyl-2,3-dihydroisoindol-1-one, 4-bromo-2-methyl-3H-isoindol-1-one, 4-bromo-2-methyl-1-isoindolinone, 1H-Isoindol-1-one, 4-bromo-2,3-dihydro-2-methyl-

4-Bromo-2-methylisoindolin-1-one (CAS 435273-55-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H8BrNO and a molecular weight of 226.07000 g/mol. Key properties include a boiling point of 356.577ºC at 760 mmHg, a density of 1.589g/cm3 and a flash point of 169.452ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 435273-55-5
Jingsj CID: J-1204539-5
Molecular Formula: C₉H₈BrNO
Molecular Weight: 226.07000 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	356.577ºC at 760 mmHg
Density	1.589g/cm3
Flash Point	169.452ºC
Exact Mass	224.97900
PSA	20.31000
LogP	1.97260
Refractive Index	1.619

Customs & Trade Information

HS Code	2933790090
Summary	2933790090. 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-Bromo-2-methylisoindolin-1-one?

The CAS number of 4-Bromo-2-methylisoindolin-1-one is 435273-55-5.

What are the molecular formula and molecular weight of 4-Bromo-2-methylisoindolin-1-one?

4-Bromo-2-methylisoindolin-1-one has molecular formula C9H8BrNO and molecular weight 226.07000 g/mol.

What are the upstream and downstream products of 4-Bromo-2-methylisoindolin-1-one?

For 4-Bromo-2-methylisoindolin-1-one, Upstream Products: Methyl 3-bromo-2-bromomethylbenzoate, Methylamine hydrochloride.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4-Bromo-2-methylisoindolin-1-one (CAS 435273-55-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1204539-5 (accessed 2026-11-09).

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