5 Chemical reagents for pharmaceutical, medical, or human use preparations; biological reagents for pharmaceutical, medical, or human use preparations; organic chemical or inorganic chemical nanomaterials reagents for pharmaceutical, medical, or human use preparations; polymer formulations and ingredients for pharmaceutical, medical, or human use preparations; polyethylene glycol-based reagents, polyethylene glycol derivatives, pegylation reagents, polysaccharide reagents, hyaluronic acid-based reagents, polyester reagents, and polyethylene glycol copolymer reagents, for pharmaceutical, medical, or human use preparations