Quinoline can produce drugs and highly effective pesticides,and after oxidation, it can be used as pyridine carboxylic acid.Its derivatives can be used for the manufacture of color film and dye. And it can be used for synthetic drugs, dyes, pesticides and intermediates gas chromatography stationary phase.Send Inquiry
Quinoline CAS NO 91-22-5
Quinoline containing 83%; Isoquinoline 15%; methylquinoline 2% crude quinoline can be used as a source of isoquinoline, but usually in the cut 237.5-239.5 ° C crude quinoline fraction segment, then cutting the fractions of 243-246 ° C were used as starting materials for the extraction of isoquinoline. This fraction segment partially separated 13-28% of 2-methylquinoline in hydrochloride and 3.9% of quinoline. The isoquinoline fraction in an alcoholic solution is reacted with 98% sulfuric acid, at 35% ° C, to form the isoquinolinesulfonate. Upon cooling, the isoquinoline sulfonate crystallizes prior to its homolog sulfonate. After filtration, with 85% ethanol for recrystallization, and then 20% ammonia decomposition, after the formation of the oil layer washed with water, cut 242-243 ° C fraction, then get the purity greater than 95% of isoquinoline
Soluble in hot water, insoluble in cold water
Quinoline can be used to produce a tonic, can also be used as acid, solvent, preservative, etc .In pharmaceutical industry, Quinoline can be used for the production of nicotinic acid and 8-hydroxyquinoline drugs, in printing and dyeing industry for the preparation of cyanine blue pigment and photosensitive pigment, in rubber industry for system accelerators, in agriculture for the production of 8-hydroxyquinoline copper and other pesticides.
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