2-oxo-2,3-dihydro-1H-indole-4-carboxylic acid
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. 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-1444152-2
- Molecular Formula
- C9H7NO3
- Molecular Weight
- 177.157 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 444.2±45.0 °C at 760 mmHg |
|---|---|
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 222.5±28.7 °C |
| Exact Mass | 177.042587 |
| PSA | 66.40000 |
| LogP | 1.39 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.635 |
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 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.
What are the upstream and downstream products of 2-oxo-2,3-dihydro-1H-indole-4-carboxylic acid?
For 2-oxo-2,3-dihydro-1H-indole-4-carboxylic acid, Upstream Products: Tin(II) chloride.
Data compiled from public chemical databases such as PubChem 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-1444152-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.