MHPH (Maleimide HyNic) Linker, 10 mg, converts thiol groups on proteins and surfaces to HyNic groups, which is one of the fundamental linkers to SoluLINK bioconjugation technology. HyNic reacts with 4FB groups on other biomolecules or surfaces to create stable aromatic hydrazone bonds, which are chromophoric and may be easily quantified spectrophotometrically.