2,3-Dioxoindoline-7-carboxylic acid
Also known as: 1H-Indole-7-carboxylic acid, 2,3-dihydro-2,3-dioxo-, 1H-indole-2,3-dione-7-carboxylic acid, 2,3-Dioxo-7-indolinecarboxylic acid, 2,3-dioxo-2,3-dihydro-1H-indole-7-carboxylic acid, 2,3-dioxo-1H-benzo[d]azolidine-7-carboxylic acid, Isatin-7-carboxylic acid, MFCD00612492
2,3-Dioxoindoline-7-carboxylic acid (CAS 25128-35-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H5NO4 and a molecular weight of 191.140 g/mol. Key properties include a melting point of 268-275ºC and a density of 1.6±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 25128-35-2
- Jingsj CID
- J-1035430-0
- Molecular Formula
- C9H5NO4
- Molecular Weight
- 191.140 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 268-275ºC |
|---|---|
| Density | 1.6±0.1 g/cm3 |
| Exact Mass | 191.021851 |
| PSA | 83.47000 |
| LogP | 1.36 |
| Refractive Index | 1.660 |
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 2,3-Dioxoindoline-7-carboxylic acid?
The CAS number of 2,3-Dioxoindoline-7-carboxylic acid is 25128-35-2.
What are the molecular formula and molecular weight of 2,3-Dioxoindoline-7-carboxylic acid?
2,3-Dioxoindoline-7-carboxylic acid has molecular formula C9H5NO4 and molecular weight 191.140 g/mol.
What are the upstream and downstream products of 2,3-Dioxoindoline-7-carboxylic acid?
For 2,3-Dioxoindoline-7-carboxylic acid, Upstream Products: Methyl 2-{[(2E)-2-(hydroxyimino)ethanoyl]amino}benzoate, Methyl anthranilate, Chloral hydrate; Downstream Products: 2-Aminoisophthalic acid, 1H-Indol-7-ylmethanol, 1H-Indole-7-carboxaldehyde.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,3-Dioxoindoline-7-carboxylic acid (CAS 25128-35-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1035430-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.