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2,6-Dichloropyridine-4-carboxylic acid

Also known as: 2,6-Dichloroisonicotinic acid, 4-Carboxy-2,6-dichloropyridine, 2,6-Dichloro-4-pyridinecarboxylic acid

2,6-Dichloropyridine-4-carboxylic acid (CAS 5398-44-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H3Cl2NO2 and a molecular weight of 192.00 g/mol. Key properties include a melting point of 209-212 °C(lit.), a boiling point of 437.8±40.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 218.6±27.3 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5398-44-7
Jingsj CID
J-18759-7
Molecular Formula
C6H3Cl2NO2
Molecular Weight
192.00 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point209-212 °C(lit.)
Boiling Point437.8±40.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point218.6±27.3 °C
Exact Mass190.954086
PSA50.19000
LogP2.72
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.606
Additional Propertyinsoluble

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Frequently Asked Questions

What is the CAS number of 2,6-Dichloropyridine-4-carboxylic acid?

The CAS number of 2,6-Dichloropyridine-4-carboxylic acid is 5398-44-7.

What are the molecular formula and molecular weight of 2,6-Dichloropyridine-4-carboxylic acid?

2,6-Dichloropyridine-4-carboxylic acid has molecular formula C6H3Cl2NO2 and molecular weight 192.00 g/mol.

Is 2,6-Dichloropyridine-4-carboxylic acid hazardous?

2,6-Dichloropyridine-4-carboxylic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 2,6-Dichloropyridine-4-carboxylic acid?

For 2,6-Dichloropyridine-4-carboxylic acid, Upstream Products: Citrazinic acid, Methyl 2,6-dichloroisonicotinate, 2,6-Dichloro-4-iodopyridine; Downstream Products: 2-chloro-6-isopropoxyisonicotinic acid, 4-Pyridinemethanol, Isonipecotic acid.

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

Last updated:

How to cite: Jingsj. "2,6-Dichloropyridine-4-carboxylic acid (CAS 5398-44-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18759-7 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.