How to label a chemical reaction with chemfig?

Question

I am trying to add a label to a chemical reaction so that I can reference it just like equations. For example:

\documentclass[12pt]{amsart}
\usepackage{chemfig}

\begin{document}

\begin{center}
\schemestart
$A$ \arrow(A--B){<=>[$\alpha$][$\beta$]}[0, 0.7] $B$
\schemestop
\end{center}

\end{document}

How can I add a (1) next to that reaction? I tried using \label{myreaction} but it didn't work. I noticed there was another question like this one but the only answer uses the chemmacros package, is there really no way to do it with chemfig?

Answer 1

I'd use chemmacros in order to number reaction equations. The package that is used to parse the contents of a reaction environment can be selected using the formula option. You can chose between the following packages: chemformula(default), mhchem, chemist and chemfig.

A compilable MWE which uses chemfig for the reaction equation itself and chemmacros to number it results in the following output:

\documentclass[12pt]{amsart}
\usepackage{chemfig}

\usepackage{chemmacros}
\chemsetup{modules=reactions, formula=chemfig}
\begin{document}

\begin{reaction}
\schemestart
$A$ \arrow(A--B){<=>[$\alpha$][$\beta$]}[0, 0.7] $B$
\schemestop
\end{reaction}

\end{document}