US Patent Issued to SHANGHAI FOREFRONT PHARMCEUTICAL on Oct. 7 for "Crystal form of Treprostinil sodium salt and preparation method therefor" (Chinese Inventors)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,023, issued on Oct. 7, was assigned to SHANGHAI FOREFRONT PHARMCEUTICAL Co. LTD. (Shanghai).

"Crystal form of Treprostinil sodium salt and preparation method therefor" was invented by Wei Li (Shanghai) and Yi Ren (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are a new crystal form of treprostinil sodium salt (the structural formula thereof is shown as formula I) and a preparation method therefor. Specifically, disclosed are a five and half hydrates of the treprostinil sodium salt and some dehydrated crystal forms thereof. The new crystal form has better stability and hygroscopicity. As a treprostinil crude drug, the new crystal f...