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6-Chloronicotinic acid

Also known as: 6-Chloro-3-pyridinecarboxylic acid, 6-Chloropyridine-3-carboxylic acid, 2-Chloro-5-pyridinecarboxylic acid, 3-Pyridinecarboxylic acid, 6-chloro-, 6-CHLORO-3-PYRIDINECARBOXYLIC ACID, 6-CHLORONICOTINIC ACID, 6-Chloro-3-pyridinecarboxylic acid, 6-Chloropyridine-3-carboxylic acid

6-Chloronicotinic acid (CAS 5326-23-8) is a compound in the Organic Acids 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 °C (dec.)(lit.), a boiling point of 330.1±22.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 153.4±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.
5326-23-8
Jingsj CID
J-1112626-4
Molecular Formula
C6H4ClNO2
Molecular Weight
157.555 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point190 °C (dec.)(lit.)
Boiling Point330.1±22.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point153.4±22.3 °C
Exact Mass156.993057
PSA50.19000
LogP0.98
Vapor Pressure0.0±0.8 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

Customs & Trade Information

HS Code2933399090
Summary2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 6-Chloronicotinic acid?

The CAS number of 6-Chloronicotinic acid is 5326-23-8.

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

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

Is 6-Chloronicotinic acid hazardous?

6-Chloronicotinic 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-Chloronicotinic acid?

For 6-Chloronicotinic acid, Upstream Products: 2-Chloro-5-(trichloromethyl)pyridine, 2-Chloro-5-methylpyridine, Imidacloprid; Downstream Products: benzyl 6-chloropyridine-3-carboxylate, 5-Amino-2-chloropyridine-4-carboxylic acid, 6-Aminonicotinic 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-Chloronicotinic acid (CAS 5326-23-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1112626-4 (accessed 2026-11-09).

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