1H-Indole-5-carboxylic acid

1H-吲哚-5-羧酸

Also known as: 5-Carboxyindole, Indole-5-carboxylic acid

1H-Indole-5-carboxylic acid (CAS 142396-03-0) 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 5-Carboxyindole and Indole-5-carboxylic acid. Key properties include 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. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
142396-03-0
Jingsj CID
J-1405393-5
Molecular Formula
C9H7NO2
Chinese Name
1H-吲哚-5-羧酸
Molecular Weight
161.157 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point419.6±18.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point207.6±21.2 °C

Frequently Asked Questions

What is the CAS number of 1H-Indole-5-carboxylic acid?

The CAS number of 1H-Indole-5-carboxylic acid is 142396-03-0.

What are the molecular formula and molecular weight of 1H-Indole-5-carboxylic acid?

1H-Indole-5-carboxylic acid has molecular formula C9H7NO2 and molecular weight 161.157 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "1H-Indole-5-carboxylic acid (CAS 142396-03-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1405393-5 (accessed 2026-10-26).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.