Nomen: Follistatin 344 Synonyma: FST, FS, Activin-binding protein. CAS: 80449-31-6 Formulae hypotheticae: C13H16O3 Molecular Weight: N/A Purity (per HPLC *): 99.0% Aspectus: Sterile Filtered White Lyophilized (Freeze-Dried)