Vector Laboratories offers a suite of cross-linking reagents and DSPE-functionalized linkers designed for covalent modification, labeling, and stabilization of biomolecules in diagnostic workflows. These reagents can facilitate precise conjugation among proteins, nucleic acids, glycans, and surfaces via reactive functional groups or orthogonal chemical handles. The collection spans classical, hetero/homobifunctional, click-compatible, and PEG-based linkers, built for flexibility for both standard and bioorthogonal chemistry applications. Vector’s Cross-Linker and DSPE Linker portfolios are engineered to enable precise and customizable conjugation strategies, whether for simple protein labeling, nanoparticle modification, or advanced click chemistry applications. With options spanning classical covalent chemistry and modern bioorthogonal systems, these tools can support a variety of needs in chemical biology, drug delivery, diagnostics, and molecular engineering.