CAS 131-48-6 N-Acetylneuraminic Acid Sialic Acid Powder 99% Purity Sialic Acid

Description: Sialic acid is a naturally occurring carbohydrate. Sialic acid was originally isolated from the mucin of the submandibular gland, hence the name. Sialic acid is usually present in the form of oligosaccharides, glycolipids or glycoproteins. Sialic acidthe brain has the highest levels of sialic acid in the human body.The sialic acid content in the gray matter is 15 times that of the liver, lungs and other internal organs. Sialic acid the main food source of sialic acid is breast milk, also found in milk, eggs and cheese.

N-Acetylneuraminic acid is the predominant sialic acid found in human cells, and many mammalian cells. Other forms, such as N-Glycolylneuraminic acid, may also occur in cells. This residue is negatively charged at physiological pH and is found in complex glycans on mucins and glycoproteins found at the cell membrane. Neu5Ac residues are also found in glycolipids, known as gangliosides, a crucial component of neuronal membranes found in the brain.