Activated PEG for PEGylation

We manufacture high-purity methoxy-polyethylene glycols (mPEGs) with molecular weights from 2kDa to 80kDa, producing high-purity activated PEG derivatives of methoxy PEG amines, maleimides and carboxylic acids. Various alterations of the terminal PEG chemistry permit drug modification as per customers’ expectations and needs. Furthermore, use of PEGylated phospholipids composed of our high-purity phospholipids and PEGs prolongs the plasma circulating half-life of liposome drugs. Recently, we have developed high purity single molecule PEGs especially for Antibody Drug Conjugates (ADCs) to increase hydrophilicity and payload of drugs.