(2-Oxo-2,3-dihydro-1H-indol-3-yl)acetic acid
Also known as: 2-Oxindole-3-acetic acid, Oxindole-3-acetic acid, 2-(2-oxoindolin-3-yl)acetic acid, 2-(2-oxo-1,3-dihydroindol-3-yl)acetic acid, 2-(2-ketoindolin-3-yl)acetic acid, 2-(2-hydroxy-3H-indol-3-yl)acetic acid
(2-Oxo-2,3-dihydro-1H-indol-3-yl)acetic acid (CAS 2971-31-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H9NO3 and a molecular weight of 191.183 g/mol. Key properties include a boiling point of 445.2±38.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 223.0±26.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2971-31-5
- Jingsj CID
- J-1499672-6
- Molecular Formula
- C10H9NO3
- Molecular Weight
- 191.183 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 445.2±38.0 °C at 760 mmHg |
|---|---|
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 223.0±26.8 °C |
| Exact Mass | 191.058243 |
| PSA | 66.40000 |
| LogP | 0.69 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.588 |
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-indol-3-yl)acetic acid?
The CAS number of (2-Oxo-2,3-dihydro-1H-indol-3-yl)acetic acid is 2971-31-5.
What are the molecular formula and molecular weight of (2-Oxo-2,3-dihydro-1H-indol-3-yl)acetic acid?
(2-Oxo-2,3-dihydro-1H-indol-3-yl)acetic acid has molecular formula C10H9NO3 and molecular weight 191.183 g/mol.
What are the upstream and downstream products of (2-Oxo-2,3-dihydro-1H-indol-3-yl)acetic acid?
For (2-Oxo-2,3-dihydro-1H-indol-3-yl)acetic acid, Upstream Products: Indole-3-acetic acid, Oxindole, 2-bromoindole-3-acetic acid.
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-indol-3-yl)acetic acid (CAS 2971-31-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1499672-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.