Anti-allergic mono salt of 6-methylamino-4-oxo-10-propyl-4H-pyrano[3,2-g]-quinoline-2,8-dicarboxylic acid

摘要

There is described the mono salt of 6-methylamino-4-oxo-10-propyl-4H-pyrano[3,2-g]-quinoline-2,8-dicarboxylic acid with a strongly basic cation. There is also described an aqueous solution of 6-methylamino-4-oxo-10-propyl-4H-pyrano[3,2-g]quinoline-2,8-dicarboxylic acid the solution being at a pH of from 4 to 8. The salts and solutions are useful as pharmaceuticals, e.g. in the treatment of allergies.