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6-Chloropicolinic acid

Also known as: 6-Chloropyridine-2-carboxylic acid, 6-Chloro-2-pyridinecarboxylic acid, 2-Chloro-6-pyridinecarboxylic acid, 2-Chloropyridine-6-carboxylic acid, 6-Chloro-2-picolinic acid, 2-Pyridinecarboxylic acid, 6-chloro-, 6-Chloropicolinic Acid

6-Chloropicolinic acid (CAS 4684-94-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H4ClNO2 and a molecular weight of 157.555 g/mol. Key properties include a melting point of 190-191°C, a boiling point of 323.2±22.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 149.3±22.3 °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.
4684-94-0
Jingsj CID
J-23465-1
Molecular Formula
C6H4ClNO2
Molecular Weight
157.555 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point190-191°C
Boiling Point323.2±22.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point149.3±22.3 °C
Exact Mass156.993057
PSA50.19000
LogP0.99
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.590

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 6-Chloropicolinic acid?

The CAS number of 6-Chloropicolinic acid is 4684-94-0.

What are the molecular formula and molecular weight of 6-Chloropicolinic acid?

6-Chloropicolinic acid has molecular formula C6H4ClNO2 and molecular weight 157.555 g/mol.

Is 6-Chloropicolinic acid hazardous?

6-Chloropicolinic 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 6-Chloropicolinic acid?

For 6-Chloropicolinic acid, Upstream Products: 2-Bromo-6-chloropyridine, Carbon dioxide, Formyl acetate; Downstream Products: (6-Chloropyridin-2-yl)methanol, 2-Amino-6-chloropyridine, 2-Picolinic 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. "6-Chloropicolinic acid (CAS 4684-94-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-23465-1 (accessed 2026-11-09).

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