Conjugates

摘要

A compound represented by the formula <IMAGE> wherein X is a spacer group. The compound is useful for conjugating a compound having an alcohol group or an amine group to a compound having a thiol group. The compound can be used to conjugate a biologically active group such as an antigen to a protein such as an enzyme to provide an enzyme-labeled antigen for use in enzyme-amplified immunoassay methods for analytes or metabolites in sample fluids. The compound can also be used to immobilize a material such as a protein to a solid support.