Patents Represented by Attorney, Agent or Law Firm Armstrong, Westarman, Hattori, McLeland & Naughton, LLP
  • Process for producing creatine or creatine-monohydrate
    Patent number: 6326513
    Abstract: The present invention relates to a process for producing creatine or creatine-monohydrate, comprising the step of reacting N-methylglycine, sodium N-methylglycinate and/or potassium N-methylglycinate with S-methylisothiourea and/or S-methylisothiourea sulfate in water or in a mixture of water and an alcohol solvent under the temperature from 15° C. to 140° C. and a pH of 7-13. By using the process of the present invention creatine or creatine-monohydrate with a higher purity can be produced at a much lower cost.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: December 4, 2001
    Assignee: Tianjin Tiancheng Pharmaceutical Co., LTD
    Inventors: Lihua An, Yuwen Zheng, Guoji Zhang