2,3,5,6-Tetrachloroisonicotinic acid

2,3,5,6-四氯异烟酸

Also known as: 2,3,5,6-Tetrachloro-4-pyridinecarboxylic acid, 2,3,5,6-Tetrachloropyridine-4-carboxylic acid, Tetrachloroisonicotinic acid, 4-Pyridinecarboxylic acid, 2,3,5,6-tetrachloro-

2,3,5,6-Tetrachloroisonicotinic acid (CAS 19340-26-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6HCl4NO2 and a molecular weight of 260.890 g/mol. It is also known as 2,3,5,6-Tetrachloro-4-pyridinecarboxylic acid, 2,3,5,6-Tetrachloropyridine-4-carboxylic acid and Tetrachloroisonicotinic acid. Key properties include a boiling point of 426.7±40.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 211.9±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
19340-26-2
Jingsj CID
J-1494525-0
Molecular Formula
C6HCl4NO2
Chinese Name
2,3,5,6-四氯异烟酸
Molecular Weight
260.890 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point426.7±40.0 °C at 760 mmHg
Density1.8±0.1 g/cm3
Flash Point211.9±27.3 °C

Frequently Asked Questions

What is the CAS number of 2,3,5,6-Tetrachloroisonicotinic acid?

The CAS number of 2,3,5,6-Tetrachloroisonicotinic acid is 19340-26-2.

What are the molecular formula and molecular weight of 2,3,5,6-Tetrachloroisonicotinic acid?

2,3,5,6-Tetrachloroisonicotinic acid has molecular formula C6HCl4NO2 and molecular weight 260.890 g/mol.

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

Last updated:

How to cite: Jingsj. "2,3,5,6-Tetrachloroisonicotinic acid (CAS 19340-26-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1494525-0 (accessed 2026-10-24).

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