... > 90%, 95% Good quality, competitive price As a professional supplier of chitin,chitosan and their ramification located in china,we can ... , 200,000, 150,000, 100,000, 50,000 20,000. Unit of molecular weight is ten thousand). It is suitable to the ... water solubility, bacteriostasis and antibacterial action as well as properties of chitosan. It can be widely used in health care products ...