Teichoic acid from the walls of <i>Staphylococcus aureus</i> H. Structure of the <i>N</i>-acetylglucosaminylribitol residues

Abstract

2. A flavan present in E. astringen8 bark and E. marginata heartwood has the expected chro- matographic properties and colour reactions of leucodelphinidin but does not yield delphinidin when heated with acid.