chemical products for medicinal and pharmaceutical use, namely, monoclonal-antibody-drug-conjugate preparations for the treatment of cancer or other indicated human disease; pharmaceutical products for the treatment of cancer, autoimmune diseases, and viral infections; preparations for the medical treatment of cancer consisting of a monoclonal antibody (mAb) or antibody fragment connected to an anti-cancer payload or toxin or immune-stimulant via a chemical linker; chemical reagents for medic...