Indole-4-carboxylic acid
吲哚-4-羧酸
Also known as: 1H-Indole-4-carboxylic acid, 4-Carboxyindole, 4-Indolecarboxylic acid, 1H-4-Indolecarboxylic acid, RARECHEM AL BE 1201, 4-INDOLE CARBOXYLIC ACID, Indole-4-Carbocylic acid
Indole-4-carboxylic acid (CAS 2124-55-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H7NO2 and a molecular weight of 161.157 g/mol. It is also known as 1H-Indole-4-carboxylic acid, 4-Carboxyindole and 4-Indolecarboxylic acid. Key properties include a melting point of 213-214 °C(lit.), a boiling point of 419.6±18.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 207.6±21.2 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2124-55-2
- Jingsj CID
- J-49656-0
- Molecular Formula
- C9H7NO2
- Chinese Name
- 吲哚-4-羧酸
- Molecular Weight
- 161.157 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 213-214 °C(lit.) |
|---|---|
| Boiling Point | 419.6±18.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 207.6±21.2 °C |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of Indole-4-carboxylic acid?
The CAS number of Indole-4-carboxylic acid is 2124-55-2.
What are the molecular formula and molecular weight of Indole-4-carboxylic acid?
Indole-4-carboxylic acid has molecular formula C9H7NO2 and molecular weight 161.157 g/mol.
Is Indole-4-carboxylic acid hazardous?
Indole-4-carboxylic acid has GHS signal word Warning.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Indole-4-carboxylic acid (CAS 2124-55-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49656-0 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.