2-Nitroisophthalic acid

2-硝基间苯二甲酸

Also known as: 2-Nitro-1,3-benzenedicarboxylic acid, 2-nitrobenzene-1,3-dicarboxylic acid, 1,3-Benzenedicarboxylic acid, 2-nitro-, 2-NITRO-ISOPHTHALIC ACID, 2-NITRO-ISOPHTHALIC ACID2-NITROPHENYL-1,3-DICARBOXYLIC ACID

2-Nitroisophthalic acid (CAS 21161-11-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H5NO6 and a molecular weight of 211.128 g/mol. It is also known as 2-Nitro-1,3-benzenedicarboxylic acid, 2-nitrobenzene-1,3-dicarboxylic acid and 1,3-Benzenedicarboxylic acid, 2-nitro-. Key properties include a melting point of 314ºC, a boiling point of 473.7±40.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 214.0±15.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21161-11-5
Jingsj CID
J-1370407-2
Molecular Formula
C8H5NO6
Chinese Name
2-硝基间苯二甲酸
Molecular Weight
211.128 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point314ºC
Boiling Point473.7±40.0 °C at 760 mmHg
Density1.7±0.1 g/cm3
Flash Point214.0±15.8 °C

Frequently Asked Questions

What is the CAS number of 2-Nitroisophthalic acid?

The CAS number of 2-Nitroisophthalic acid is 21161-11-5.

What are the molecular formula and molecular weight of 2-Nitroisophthalic acid?

2-Nitroisophthalic acid has molecular formula C8H5NO6 and molecular weight 211.128 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Nitroisophthalic acid (CAS 21161-11-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1370407-2 (accessed 2026-10-22).

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