5-Nitroisophthalic acid

5-硝基间苯二甲酸

Also known as: 1,3-Benzenedicarboxylic acid, 5-nitro-, 5-Nitro-1,3-benzenedicarboxylic acid, 5-Nitrobenzene-1,3-dicarboxylic acid, 3-Carboxy-5-nitrobenzoic acid, 5-NIPA, 5-Nitro-m-phthalic acid, Nitroisophthalic acid, Glycopyrronium Bromide EP Impurity O, 5-NO2-isophthalic acid

5-Nitroisophthalic acid (CAS 618-88-2) 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 1,3-Benzenedicarboxylic acid, 5-nitro-, 5-Nitro-1,3-benzenedicarboxylic acid and 5-Nitrobenzene-1,3-dicarboxylic acid. Key properties include a melting point of 259-261 °C(lit.), 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 213.9±15.8 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
618-88-2
Jingsj CID
J-32717-0
Molecular Formula
C8H5NO6
Chinese Name
5-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 Point259-261 °C(lit.)
Boiling Point473.7±40.0 °C at 760 mmHg
Density1.7±0.1 g/cm3
Flash Point213.9±15.8 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 5-Nitroisophthalic acid?

The CAS number of 5-Nitroisophthalic acid is 618-88-2.

What are the molecular formula and molecular weight of 5-Nitroisophthalic acid?

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

Is 5-Nitroisophthalic acid hazardous?

5-Nitroisophthalic 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. "5-Nitroisophthalic acid (CAS 618-88-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32717-0 (accessed 2026-10-22).

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