The solubility of Levofloxacin in water?

What is the solubility of Levofloxacin in the water?It is best to tell me a specific answer.I don't want to use left hydrochloride, although its water solution is better.In addition, if any prawn knows how can I get a small amount of Levofloxacin (3-5 g), please contact me, QQ: 328317150