3-Deoxy-D-glycero-D-galacto-2-nonulosonic acid sodium

3-Deoxy-D-glycero-D-galacto-2-nonulosonic acid (KDN) sodium is a type of sialic acid. It protects oligo/ (poly) sialic acid chains from the impact of non-reducing end exosialidases and plays a role in the activation of salmonid fish eggs. This compound is abundant in fetal umbilical cord red blood cells and human malignant ovarian cancer cells.