Pfanstiehl Sodium Succinate (Hexahydrate) High Purity, Low Endotoxin, Low Metals is a multi-compendial fully hydrated form of Na succinate that has been specifically designed and formulated to remove impurities such as endotoxin, trace metals, and nitrosamines. Manufactured in the USA under ICH-Q7 cGMP conditions, Pfanstiehl Sodium Succinate meets parenteral (injectable) excipient grade standards, making it ideal for pharmaceutical, biologic, and vaccine bioprocessing and formulation. Pfanstiehl Brand Sodium Succinate (Anhydrous) is compliant with the USP monograph established in 2017 and available as USP-NF (United States Pharmacopoeia National Formulary) and JP (Japanese Pharmacopoeia) Compendial, U.S.P. , cGMP , pharmaceutical grade .