Skeletal formula of chitosan — a linear polysaccharide composed of randomly distributed β-(1→4)-linked <small>D</small>-glucosamine (deacetylated unit) and <i>N</i>-acetyl-<small>D</small>-glucosamine (acetylated unit). This structure shows completely deacetylated chitosan.
<a href="//commons.wikimedia.org/wiki/User:Asadwarraich" title="User:Asadwarraich"><span style="color:green"><i><b>Warraich Sahib</b></i></span></a>
<span class="int-own-work" lang="en">Own work</span>