Reaction of dabsyl chloride with a primary amine.
<a href="//commons.wikimedia.org/wiki/User:Nothingserious" title="User:Nothingserious">Nothingserious</a>
<cite class="book" style="font-style:normal">Lottspeich, Friedrich; Engels, Joachim W. , ed.  (2012) <i> Bioanalytik</i> (3<sup>rd</sup> ed.), Springer, p. 341 f.  <small><a href="https://en.wikipedia.org/wiki/International_Standard_Book_Number" class="extiw" title="en:International Standard Book Number">ISBN</a>:  <a href="//commons.wikimedia.org/wiki/Special:BookSources/978-3-8274-2942-1" title="Special:BookSources/978-3-8274-2942-1">978-3-8274-2942-1</a>. </small></cite>