6-Hydroxyindole-2-carboxylic acid
Also known as: 6-Hydroxy-1H-indole-2-carboxylic acid, 1H-Indole-2-carboxylic acid, 6-hydroxy-, 6-Hydroxy-1H-indole-2-carboxylic acid
6-Hydroxyindole-2-carboxylic acid (CAS 40047-23-2) 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 511.4±30.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 263.1±24.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 40047-23-2
- Jingsj CID
- J-1517324-7
- 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 | 511.4±30.0 °C at 760 mmHg |
|---|---|
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 263.1±24.6 °C |
| Exact Mass | 177.042587 |
| PSA | 73.32000 |
| LogP | 1.57 |
| Vapor Pressure | 0.0±1.4 mmHg at 25°C |
| Refractive Index | 1.780 |
| Storage Conditions | 2-8°C |
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 6-Hydroxyindole-2-carboxylic acid?
The CAS number of 6-Hydroxyindole-2-carboxylic acid is 40047-23-2.
What are the molecular formula and molecular weight of 6-Hydroxyindole-2-carboxylic acid?
6-Hydroxyindole-2-carboxylic acid has molecular formula C9H7NO3 and molecular weight 177.157 g/mol.
What are the upstream and downstream products of 6-Hydroxyindole-2-carboxylic acid?
For 6-Hydroxyindole-2-carboxylic acid, Upstream Products: Methyl 6-methoxy-1H-indole-2-carboxylate, 6-Methoxy-1H-indole-2-carboxylic acid, 6-(Benzyloxy)-1H-indole-2-carboxylic acid; Downstream Products: Methyl 6-hydroxy-1H-indole-2-carboxylate, 6-Hydroxyindole.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "6-Hydroxyindole-2-carboxylic acid (CAS 40047-23-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1517324-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.