\documentclass{article} \usepackage{acro} \usepackage{csquotes} \usepackage{chemmacros} \DeclareAcronym{APA}{ short = 3-APA , long = \iupac{3-azido-1-propyl|amine} } \DeclareAcronym{CuAAC}{ short = \enquote{click} chemistry , long = copper(I)-catalyzed azide-alkyne cycloaddition } \begin{document} 1: \Acl{APA} 2: \Acs{CuAAC} 3: \Acl{CuAAC} \end{document}