The critical step of design and modification of hapten is by considering the choice of appropriate modification sites, selection of spacer arm length, selection of linking spacer and carrier, and the coupling method. Based on the chemical criteria, theoretical studies, and molecular modeling techniques, Creative Biolabs can offer the molecular structure design of hapten. These haptens could have a certain degree of complexity or rigidity to maintain the original molecular structure of the hapten and to be most exposed on the surface of carrier protein and the active groups. https://small-molecule-antibody.creative-biolabs.com/small-molecule-hapten-design-and-synthesis.htm