5-Nitro-1H-indole-2-carboxylic acid

5-硝基吲哚-2-甲酸

Also known as: 5-Nitroindole-2-carboxylic acid, 1H-Indole-2-carboxylic acid, 5-nitro-, 2-Carboxy-5-nitro-1H-indole, 5-Nitro-2-indolecarboxylic acid, 5-Nitroindole-2-carboxylicaicd

5-Nitro-1H-indole-2-carboxylic acid (CAS 16730-20-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H6N2O4 and a molecular weight of 206.155 g/mol. It is also known as 5-Nitroindole-2-carboxylic acid, 1H-Indole-2-carboxylic acid, 5-nitro- and 2-Carboxy-5-nitro-1H-indole. Key properties include a melting point of >300ºC, a boiling point of 520.8±30.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 268.8±24.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
16730-20-4
Jingsj CID
J-19191-1
Molecular Formula
C9H6N2O4
Chinese Name
5-硝基吲哚-2-甲酸
Molecular Weight
206.155 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point>300ºC
Boiling Point520.8±30.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point268.8±24.6 °C

Frequently Asked Questions

What is the CAS number of 5-Nitro-1H-indole-2-carboxylic acid?

The CAS number of 5-Nitro-1H-indole-2-carboxylic acid is 16730-20-4.

What are the molecular formula and molecular weight of 5-Nitro-1H-indole-2-carboxylic acid?

5-Nitro-1H-indole-2-carboxylic acid has molecular formula C9H6N2O4 and molecular weight 206.155 g/mol.

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

Last updated:

How to cite: Jingsj. "5-Nitro-1H-indole-2-carboxylic acid (CAS 16730-20-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19191-1 (accessed 2026-10-22).

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