2,3-Difluoroisonicotinic acid

2,3-二氟吡啶-4-甲酸

Also known as: 2,3-Difluoro-4-carboxypyridine, 2,3-Difluoropyridine-4-carboxylic acid, 4-Carboxy-2,3-difluoropyridine, 2,3-difluoro-4-pyridinecarboxylic acid, 4-Pyridinecarboxylic acid, 2,3-difluoro-

2,3-Difluoroisonicotinic acid (CAS 851386-31-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H3F2NO2 and a molecular weight of 159.090 g/mol. It is also known as 2,3-Difluoro-4-carboxypyridine, 2,3-Difluoropyridine-4-carboxylic acid and 4-Carboxy-2,3-difluoropyridine. Key properties include a melting point of 159-160ºC, a boiling point of 377.4±37.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 182.1±26.5 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
851386-31-7
Jingsj CID
J-1494568-7
Molecular Formula
C6H3F2NO2
Chinese Name
2,3-二氟吡啶-4-甲酸
Molecular Weight
159.090 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point159-160ºC
Boiling Point377.4±37.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point182.1±26.5 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2,3-Difluoroisonicotinic acid?

The CAS number of 2,3-Difluoroisonicotinic acid is 851386-31-7.

What are the molecular formula and molecular weight of 2,3-Difluoroisonicotinic acid?

2,3-Difluoroisonicotinic acid has molecular formula C6H3F2NO2 and molecular weight 159.090 g/mol.

Is 2,3-Difluoroisonicotinic acid hazardous?

2,3-Difluoroisonicotinic 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. "2,3-Difluoroisonicotinic acid (CAS 851386-31-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1494568-7 (accessed 2026-10-24).

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