Hi, I am interested in your product salinomycin (CAS 53003-10-4). Could you please confirm whether this is salinomycin free acid (not the sodium salt), and what is the purity (HPLC %)? I would also appreciate it if you could provide a Certificate of Analysis (COA) for the current batch as well as an HPLC chromatogram. Additionally, could you share the batch number and production date? Finally, please let me know your price and MOQ for small quantities (e.g. 1 g and 5 g), including shipping to Europe.