CAS No.:24065-33-6

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Analytical Methods：The compounds of formula according to the invention having a free carboxylic radical or a free amino radical may be converted in usual manner into their pharmaceutically acceptable salts. E.g. the compound of formula  is dissolved in its free form in a solvent, e.g. an alcohol or WATER, an adequate amount of hydrochlorid acid or Sodium hydroxide is added to the solution, the mixture is agitated at room temperature for an adequate period, then the solvent is distilled off, the residue is recrystallized and the salt of the compound of formula is obtained. Suitable examples for such pharmaceutically acceptable salts additionally to the salt of hydrochloric acid are the salts of SULFURIC ACID, nitric acid, phosphoric acid, sulfonic acid, benzoic acid, SUCCINIC ACID, Tartaric acid and citric acid. Examples for pharmaceutically acceptable addition salts of bases additionally to the sodium salt are the POTASSIUM salt, the calcium salt and the MAGNESIUM salt.