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2-Chloro-4-iodonicotinic acid

2-氯-4-碘烟酸

Also known as: 2-chloro-4-iodopyridine-3-carboxylic acid, 2-CHLORO-4-IODO-NICOTINIC ACID, 2-chloro-4-iodo-nicotinic acid, 2-chloro-4-iodoniacin, 2-chloro-4-iodo-3-pyridinecarboxylate, 2-Chloro-4-Iodinenicotinic Acid, 2-chloro-4-iododnicotinic acid, 3-PYRIDINECARBOXYLIC ACID, 2-CHLORO-4-IODO-, MFCD05663520

2-Chloro-4-iodonicotinic acid (CAS 544671-78-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H3ClINO2 and a molecular weight of 283.451 g/mol. It is also known as 2-chloro-4-iodopyridine-3-carboxylic acid, 2-CHLORO-4-IODO-NICOTINIC ACID and 2-chloro-4-iodo-nicotinic acid. Key properties include a melting point of 175-178ºC (dec.), a boiling point of 369.3±42.0 °C at 760 mmHg, a density of 2.2±0.1 g/cm3 and a flash point of 177.1±27.9 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
544671-78-5
Jingsj CID
J-1391698-7
Molecular Formula
C6H3ClINO2
Chinese Name
2-氯-4-碘烟酸
Molecular Weight
283.451 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point175-178ºC (dec.)
Boiling Point369.3±42.0 °C at 760 mmHg
Density2.2±0.1 g/cm3
Flash Point177.1±27.9 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2-Chloro-4-iodonicotinic acid?

The CAS number of 2-Chloro-4-iodonicotinic acid is 544671-78-5.

What are the molecular formula and molecular weight of 2-Chloro-4-iodonicotinic acid?

2-Chloro-4-iodonicotinic acid has molecular formula C6H3ClINO2 and molecular weight 283.451 g/mol.

Is 2-Chloro-4-iodonicotinic acid hazardous?

2-Chloro-4-iodonicotinic 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. "2-Chloro-4-iodonicotinic acid (CAS 544671-78-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1391698-7 (accessed 2026-10-25).

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