5-Hydroxyindolin-2-one

5-羟基吲哚-2-酮

Also known as: 5-HYDROXYOXINDOLE, 5-Hydroxy-2-oxindole, 5-Hydroxy-2-indolinone, 5-Hydroxy-2-indolone, 5-Hydroxy-1,3-dihydro-2H-indol-2-one, 1,3-Dihydro-5-hydroxy-2H-indol-2-one, 2,3-Dihydro-5-hydroxyindol-2-one, 5-Hydroxyindolin-2-one, MFCD00014566, EINECS 222-309-1

5-Hydroxyindolin-2-one (CAS 3416-18-0) 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. It is also known as 5-HYDROXYOXINDOLE, 5-Hydroxy-2-oxindole and 5-Hydroxy-2-indolinone. Key properties include a melting point of 156-157 °C, a boiling point of 419.9±45.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 207.7±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3416-18-0
Jingsj CID
J-1956942-6
Molecular Formula
C8H7NO2
Chinese Name
5-羟基吲哚-2-酮
Molecular Weight
149.147 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point156-157 °C
Boiling Point419.9±45.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point207.7±28.7 °C

Frequently Asked Questions

What is the CAS number of 5-Hydroxyindolin-2-one?

The CAS number of 5-Hydroxyindolin-2-one is 3416-18-0.

What are the molecular formula and molecular weight of 5-Hydroxyindolin-2-one?

5-Hydroxyindolin-2-one has molecular formula C8H7NO2 and molecular weight 149.147 g/mol.

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

Last updated:

How to cite: Jingsj. "5-Hydroxyindolin-2-one (CAS 3416-18-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1956942-6 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.