VWR Tromethamine, BSE/TSE Free 500 g. VWR Tromethamine, BSE/TSE Free, CAS number: 77-86-1, Suitable for bioprocessing, Manufactured under suitable cGMP controls for pharma or biopharm production, Grade: USP/EP/BP, Endotoxin Tested, Color: White, Form: Powder, Size: 500 g