Sialic Acid(SA) Determination Reagent is an in vitro diagnostic quantitative test kit. Sialic acids are one of the most important constituents of glycoconjugates in microorganisms and a wide range of higher order animals. Many sialic acids are bound to sugar chains through alpha-ketoside linkages such as alpha-2,3; alpha-2,6; and alpha-2,8. They are heavily involved in cell-to-cell recognition, blood coagulation, fertilization and other biological events.