ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,715,844, issued on Aug. 25, was assigned to SIGNDO BIOTECHNOLOGY (SUZHOU) Co. LTD (Jiangsu, China).

"Compound, preparation method therefor, composition, kit and use thereof" was invented by Jing Zhao (Jiangsu, China) and Lirong Yang (Jiangsu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided in the present invention are a compound, a preparation method therefor, a composition, a kit, and the use thereof. The compound has a condensed structural formula as follows: wherein the cation M is selected from alkali metal cations, R is a C2-C5 alkyl, and n is an integer in the range of 2-5. The compound and an application product thereof have a good ...