US Patent Issued to Zhejiang Isotope Labelled Compounds on Dec. 30 for "Carbon-14 radioisotope-labeled flonicamid and synthesis method thereof" (Chinese Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,426, issued on Dec. 30, was assigned to Zhejiang Isotope Labelled Compounds Co. Ltd (Jiaxing, China).

"Carbon-14 radioisotope-labeled flonicamid and synthesis method thereof" was invented by Lingfeng Xu (Jiaxing, China), Zhipeng Yuan (Jiaxing, China), Yaoyao Chen (Jiaxing, China), Huaguang Li (Jiaxing, China) and Bin Dong (Jiaxing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method for synthesis of carbon-14 radioisotope-labeled flonicamid. Carbon-14 radioisotope is labeled on a pyridine ring in a flonicamid molecule. Carbon-14-labeled barium carbonate is adopted as a radioisotope raw material and then subjected to a reaction ...