% Minimal working environment for using chemstylepackage.
    documentclass[12pt]{report}
    usepackage[runs=2]{auto-pst-pdf}   % Use EPS graphics with pdfLaTeX
    usepackage{chemstyle}              % Of course!

    begin{document}

    begin{figure}[p]
    includegraphics{scheme-two.eps}
    caption{A scheme with temporary compound numbers.}
    end{figure}
    begin{figure}[p]
    schemeref{IMesHCl}
    schemeref{IMes}
    includegraphics{scheme-two.eps}
    caption{A scheme with automated compound numbers.}
    end{figure}
    clearpage

    end{document}