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5-bromo-3-hydroxy-2-indolinone

Also known as: 5-bromo-3-hydroxy-1,3-dihydro-2H-indol-2-one, 5-bromo-3-hydroxy-2-indolinone, 5-bromo-3-hydroxyindolin-2-one, 5-bromo-3-hydroxyoxindole, 5-bromodioxindole, 2H-Indol-2-one, 5-bromo-1,3-dihydro-3-hydroxy-

5-bromo-3-hydroxy-2-indolinone (CAS 99304-37-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H6BrNO2 and a molecular weight of 228.04300 g/mol. Key properties include a melting point of 203-205ºC, a boiling point of 398.8ºC at 760mmHg and a density of 1.835g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
99304-37-7
Jingsj CID
J-32301-3
Molecular Formula
C8H6BrNO2
Molecular Weight
228.04300 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point203-205ºC
Boiling Point398.8ºC at 760mmHg
Density1.835g/cm3
Exact Mass226.95800
PSA49.33000
LogP1.57260
Refractive Index1.673

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-bromo-3-hydroxy-2-indolinone?

The CAS number of 5-bromo-3-hydroxy-2-indolinone is 99304-37-7.

What are the molecular formula and molecular weight of 5-bromo-3-hydroxy-2-indolinone?

5-bromo-3-hydroxy-2-indolinone has molecular formula C8H6BrNO2 and molecular weight 228.04300 g/mol.

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-bromo-3-hydroxy-2-indolinone (CAS 99304-37-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32301-3 (accessed 2026-11-09).

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