REAGENTS FOR PEGYLATION AND HYDROPHOBIC SPACER MOLECULES! 1 Branched PEGylating Reagents 2 Amino-PEG-Acids 3 Other PEG-Acids 4 Other PEG-Amines, Hydrazines and Guanidines 5 PEG-Azides for Click Chemistry 6 Biotin-PEG Reagents 7 PEG-Thiols 8 PEG-maleinimides 9 Other PEGylating Reagents 10 Hydrophobic Spacer Molecules IRIS Biotech GmbH, Waldershofer Str. 49-51, D-95615 Marktredwitz, Germany