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2-oxo-2,3-dihydro-1H-indole-4-carboxylic acid

2-吲哚酮-4-羧酸

Also known as: 2-oxo-indoline-4-carboxylic acid, 2,3-dihydro-2-oxo-1H-indole-4-carboxylic acid, 4-carboxyoxindole, 4-carboxyl-2-oxindole, 1H-Indole-4-carboxylic acid, 2,3-dihydro-2-oxo-, 2-oxo-1,3-dihydroindole-4-carboxylic acid

2-oxo-2,3-dihydro-1H-indole-4-carboxylic acid (CAS 90322-37-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H7NO3 and a molecular weight of 177.157 g/mol. It is also known as 2-oxo-indoline-4-carboxylic acid, 2,3-dihydro-2-oxo-1H-indole-4-carboxylic acid and 4-carboxyoxindole. Key properties include a boiling point of 444.2±45.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 222.5±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
90322-37-5
Jingsj CID
J-1444152-1
Molecular Formula
C9H7NO3
Chinese Name
2-吲哚酮-4-羧酸
Molecular Weight
177.157 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point444.2±45.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point222.5±28.7 °C

Frequently Asked Questions

What is the CAS number of 2-oxo-2,3-dihydro-1H-indole-4-carboxylic acid?

The CAS number of 2-oxo-2,3-dihydro-1H-indole-4-carboxylic acid is 90322-37-5.

What are the molecular formula and molecular weight of 2-oxo-2,3-dihydro-1H-indole-4-carboxylic acid?

2-oxo-2,3-dihydro-1H-indole-4-carboxylic acid has molecular formula C9H7NO3 and molecular weight 177.157 g/mol.

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

Last updated:

How to cite: Jingsj. "2-oxo-2,3-dihydro-1H-indole-4-carboxylic acid (CAS 90322-37-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1444152-1 (accessed 2026-10-25).

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