Isonicotinic acid

异烟酸

Also known as: 4-Pyridinecarboxylic acid, pyridine-4-carboxylic acid, 4-Carboxypyridine, Pyridine-4-carboxylic acid, 4-Picolinic acid, g-Pyridinecarboxylic acid, g-picolinic acid

CAS No.
55-22-1
Jingsj CID
J-30605-4
Molecular Formula
C6H5NO2
Chinese Name
异烟酸
Molecular Weight
123.109 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point≥300 °C(lit.)
Boiling Point396.0±15.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point193.3±20.4 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of Isonicotinic acid?

55-22-1

What are the molecular formula and molecular weight of Isonicotinic acid?

C6H5NO2, molecular weight 123.109 g/mol

Is Isonicotinic acid hazardous?

Warning

Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026