Isonicotinic acid CAS 55-22-1

Isonicotinic acid CAS 55-22-1

Isonicotinic acid CAS 55-22-1 is a white needle-like crystal. Odorless, sublimable. Molecular weight 123.11. Melting point 319 ℃. Slightly soluble in cold water, soluble in Chemicalbook hot water, insoluble in alcohol, benzene and ether. Is an amphoteric compound, both soluble in acid and soluble in alkali. Soluble in hot water and ethanol, slightly soluble in cold water and ether. Stable to heat and oxidation.

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Product Description

Believe Chemical is a leading China Isonicotinic acid CAS 55-22-1 manufacturer, supplier and exporter. Adhering to the pursuit of perfect quality of products, so that our Isonicotinic acid CAS 55-22-1 have been satisfied by many customers. Shandong Believe Chemical Pte. Ltd. is a high-tech enterprise integrating R &D and sales of chemical technology. 

We are good at the advantages of chemical products in the field. Our products are exported to Europe, the United States, Japan, South Korea, Southeast Asia and other countries and regions. With science and technology as the guide, honesty as the foundation, quality as the life, and relying on the enterprise concept of innovation and development, we sincerely hope to establish exchanges and extensive cooperation with domestic and foreign customers to create prosperity!

Isonicotinic acid CAS 55-22-1 Chemical Specification 

Product Name

Isonicotinic acid



Molecular Weight










 yellow to tan powder






The result conform with standard

Isonicotinic acid CAS 55-22-1 Chemical Properties

Melting point≥300°C(lit.)
Boiling point 260°C (15mmHg)
Density 1,47g/cm
Refractive index 1.5423 (estimate)
Flash point 260°C/15mm
Storage conditions norestrictions.
Solubility 6g/l
Acidity coefficient (pKa) 4.96(at25℃)
Morphology powder
color yellowtotan
PH value 3-4(6g/l,H2O,20℃)(saturatedsolution)
Water solubility 5.2g/L(20ºC)

Isonicotinic acid CAS 55-22-1 Application

Isonicotinic acid is a widely used intermediate. It is mainly used as the raw material of first-line anti-tuberculosis drugs such as isoniazid (remifon), terfenadine and isonicotinate, and can also be used as anti-corrosion agent, electroplating additive, photosensitive agent. Resin stabilizer, PVC heat stabilizer and non-ferrous metal flotation agent, etc. Isoniazid can be obtained by condensing isoniazid and hydrazine hydrate, and melting and dehydrating. Isoniazid has a good antibacterial effect on Mycobacterium tuberculosis, with good curative effect, small dosage and relatively low toxicity. It can also be used for tuberculous meningitis and other extrapulmonary tuberculosis, etc. The preparations include tablets, injections, etc.

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