Code: Select all
\documentclass[fleqn]{article}
\usepackage{mychemistry}
\begin{document}
\begin{rxn}
\reactant{\ce{Na+}} \chemand \reactant{\chemfig{*6(=-=(-C([2]=O)([0]-O^{-}))-=-)}} \arrow{}{} \reactant{\chemfig{*6(=-=(-C([2]=O)([0]-OH))-=-)}}
\end{rxn}
\end{document}