A1 2-AA Glycan Synonyms A1 N-linked oligosaccharide, A2G2S1, G2S1 Description Mono-sialylated, bi-antennary complex-type N-glycan (oligosaccharide). Sources A1 glycan is found on many mammalian glycoproteins including IgG, gamma globulins, and many serum glycoproteins. This product is typically purified from the oligosaccharide pool released from bovine serum by hydrazinolysis using a combination of HPLC and glycosidase digestion. Form Dry. Dried by centrifugal evaporation from an aqueous solution. Contains ammonium salt to stabilise against desialylation. Molecular Weight 2054 Number Of Samples Typically, 100 fmol to 10 pmol of the A1 2-AA glycan can be detected, dependent on the sensitivity of the fluorometer, HPLC or mass spectrometer. Amount Of Sample 100 pmol