Our A4 glycans have been used in FDA and EMEA approved assays since 2002 by pharmaceutical and biotech companies around the world. They are qualified by MS, HPLC, and NMR analysis to meet our rigorous standards of quality and contain no salts or other additives that may interfere with advanced analytical techniques such as mass spectrometry which require the highest levels of purity.

NA4 – asialo tetra-antennary oligosaccharide
NGA4 – asialo, agalactosylated, tetra-antennary oligosaccharide