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Isonicotinic acid CAS#55-22-1

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Chemical Name:Isonicotinic acid

CAS No.55-22-1

Molecular Formula:C6H5NO2

Molecular weight:123.11

Sample: Available

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Product Details

Products Description of Isonicotinic acid CAS#55-22-1

Isonicotinic acid is also known as pyridine-4-carboxylic acid. White needle-shaped crystals. Odorless, can sublime. Molecular weight 123.11. Melting point 319℃. Slightly soluble in cold water, soluble in hot water, insoluble in alcohol, benzene, ether. It is an amphoteric compound, soluble in both acid and alkali. Soluble in hot water and ethanol, slightly soluble in cold water and ether. Stable to heat and oxidation.

Isonicotinic acid Chemical Properties

Melting point	≥300 °C (lit.)
Boiling point	260 °C (15 mmHg)
density	1,47g/cm
refractive index	1.5423 (estimate)
Fp	260°C/15mm
storage temp.	no restrictions.
solubility	6g/l
pka	4.96(at 25℃)
form	powder
color	yellow to tan
PH	3-4 (6g/l, H2O, 20℃)(saturated solution)
Water Solubility	5.2 g/L (20 ºC)
Merck	14,5187
BRN	109599
InChIKey	TWBYWOBDOCUKOW-UHFFFAOYSA-N
CAS DataBase Reference	55-22-1(CAS DataBase Reference)
NIST Chemistry Reference	Isonicotinic acid(55-22-1)
EPA Substance Registry System	Isonicotinic acid (55-22-1)

Safety Information

Hazard Codes	Xi
Risk Statements	36/37/38
Safety Statements	26-36
WGK Germany	2
RTECS	NS1103000
TSCA	Yes
HS Code	29333999
Toxicity	LD50 orally in Rabbit: 5000 mg/kg

Product Application of Isonicotinic acid CAS#55-22-1

Isonicotinic acid is a widely used intermediate, mainly used as a raw material for first-line anti-tuberculosis drugs such as isoniazid (remifen), terfenadine and isonicotinate, and can also be used as an anti-corrosion agent, electroplating additive, photosensitive resin stabilizer, polyvinyl chloride heat stabilizer and non-ferrous metal flotation agent.

Isoniazid can be prepared by condensing isoniazid with hydrazine hydrate and melting and dehydrating. Isoniazid has a good antibacterial effect on Mycobacterium tuberculosis, good efficacy, small dosage, and relatively low toxicity. It is used for the progressive stage, dissolution and dissemination stage, and absorption improvement stage of various types of pulmonary tuberculosis. It can also be used for tuberculous meningitis and other extrapulmonary tuberculosis. The preparations include tablets and injections.

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