2,4-Dichloro-3-iodopyridine

2,4-二氯-3-碘吡啶

Also known as: 2,4-dichloro-3-iodo-pyridine, Pyridine, 2,4-dichloro-3-iodo-

2,4-Dichloro-3-iodopyridine (CAS 343781-36-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H2Cl2IN and a molecular weight of 273.887 g/mol. It is also known as 2,4-dichloro-3-iodo-pyridine and Pyridine, 2,4-dichloro-3-iodo-. Key properties include a melting point of 90-94℃, a boiling point of 290.3±35.0 °C at 760 mmHg, a density of 2.1±0.1 g/cm3 and a flash point of 129.4±25.9 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
343781-36-2
Jingsj CID
J-1494647-5
Molecular Formula
C5H2Cl2IN
Chinese Name
2,4-二氯-3-碘吡啶
Molecular Weight
273.887 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point90-94℃
Boiling Point290.3±35.0 °C at 760 mmHg
Density2.1±0.1 g/cm3
Flash Point129.4±25.9 °C

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger

Frequently Asked Questions

What is the CAS number of 2,4-Dichloro-3-iodopyridine?

The CAS number of 2,4-Dichloro-3-iodopyridine is 343781-36-2.

What are the molecular formula and molecular weight of 2,4-Dichloro-3-iodopyridine?

2,4-Dichloro-3-iodopyridine has molecular formula C5H2Cl2IN and molecular weight 273.887 g/mol.

Is 2,4-Dichloro-3-iodopyridine hazardous?

2,4-Dichloro-3-iodopyridine has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "2,4-Dichloro-3-iodopyridine (CAS 343781-36-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1494647-5 (accessed 2026-10-22).

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