Patents Assigned to Nippon Universal Pharmaceutical Co., Ltd.
  • 6-iodoethylated starch and process for preparing the same
    Patent number: 4744975
    Abstract: 6-Iodoethylated starch and process for preparing the same are disclosed. The 6-idodethylated starch contains one iodine attached per 5 glucose units. Said compound is useful as a contrast agent for X-ray examination, especially for opacifying the vascular os lymphatic vessel. Said compound is produced by reacting 6-hydroxyethylated starch with N-iodosuccinimide in the presence of triphenylphosphine.
    Type: Grant
    Filed: May 20, 1986
    Date of Patent: May 17, 1988
    Assignee: Nippon Universal Pharmaceutical Co., Ltd.
    Inventors: Tetsuo Suami, Masao Sako