Pfanstiehl Inc. is a cGMP Manufacturer of High Purity Low Endotoxin components such as Trehalose, Sucrose, Mannitol, Maltose, Galactose (non-animal), Mannose and Amino Acids such as L-Arginine, Histidine, Glutamine and Methionine for Biologics, Biosimilars, Vaccines, Cell Culture Media and Injectables (liquid & lyo) located in Waukegan Illinois USA. Pfanstiehl has been in operation since 1919, focusing on both Biopharmaceutical excipients / critical components & Pharmaceutical HPAPIs / APIs (generic and on contract manufacturing base). Pfanstiehl specializes in isolation, purification, custom synthesis and scale-up development of regulated, high purity and low endotoxin Injectable Formulation Ingredients, Pharmaceutical Intermediates and Active Pharmaceutical Ingredients, in gram to multi-ton commercial quantities.