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4-nitrobenzo[b]thiophene-2-carboxylic acid

4-硝基苯并[b]噻吩-2-羧酸

Also known as: 4-Nitrobenzothiophene-2-carboxylic acid, 4-nitrothianaphthene-2-carboxylic acid, BENZO[B]THIOPHENE-2-CARBOXYLIC ACID, 4-NITRO-, Benzo[b]thiophene-2-carboxylic acid, 4-nitro-

4-nitrobenzo[b]thiophene-2-carboxylic acid (CAS 19995-46-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H5NO4S and a molecular weight of 223.205 g/mol. It is also known as 4-Nitrobenzothiophene-2-carboxylic acid, 4-nitrothianaphthene-2-carboxylic acid and BENZO[B]THIOPHENE-2-CARBOXYLIC ACID, 4-NITRO-. Key properties include a boiling point of 473.6±25.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 240.2±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
19995-46-1
Jingsj CID
J-1520856-7
Molecular Formula
C9H5NO4S
Chinese Name
4-硝基苯并[b]噻吩-2-羧酸
Molecular Weight
223.205 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point473.6±25.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point240.2±23.2 °C

Frequently Asked Questions

What is the CAS number of 4-nitrobenzo[b]thiophene-2-carboxylic acid?

The CAS number of 4-nitrobenzo[b]thiophene-2-carboxylic acid is 19995-46-1.

What are the molecular formula and molecular weight of 4-nitrobenzo[b]thiophene-2-carboxylic acid?

4-nitrobenzo[b]thiophene-2-carboxylic acid has molecular formula C9H5NO4S and molecular weight 223.205 g/mol.

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

Last updated:

How to cite: Jingsj. "4-nitrobenzo[b]thiophene-2-carboxylic acid (CAS 19995-46-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1520856-7 (accessed 2026-10-25).

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