Alternative name: GDF-15, MIC-1, Placental TGF-beta, Prostate differentiation factor. Endotoxin: ≤1 EU/μg protein measured by kinetic LAL analysis. Purity: ≥95% (HPLC, Reducing and Non-reducing SDS-PAGE, UV spectroscopy at 280 nm). MW: ~24.5kDa. Appearance: White lyophilized (freeze-dried) powder. Formulation: Lyophilized. Sterile filtered. Source: Produced in E. coli. Non-glycosylated, disulfide linked homodimer, containing two identical 113 amino acid chains. Long Term Storage: -20°C. Use/Stability: It is recommended that a carrier protein (0.1% HSA or BSA) is added for long term storage. Handling: Centrifuge the vial before opening the cap. After reconstitution, prepare aliquots and store at -20°C.