Founded in 1919 by Carl A. Pfanstiehl, our company specializes in isolation, purification, custom synthesis and scale-up deve ... lopment of cGMP, high purity and low endotoxin (HPLE) Injectable Formulation Components, Pharmaceutical Intermediates and Active Pharmaceutical Ingredients (API’s), in gram to multi-ton commercial quantities. Tried and true parenteral excipients include trehalose, sucrose, mannitol, maltose, sorbitol, and hydroxypropyl betacyclodextrin. Upstream, high purity media components include animal component free galactose, mannose, and L-arginine. At Pfanstiehl we pride ourselves on being customer focused and are amenable to producing cGMP components on a custom basis to solve formulation challenges for our clients. read more