# How to set the biblabel in parenthesis using achemso?

I am using achemso package to write a manuscript. The final list of references appear in the following form

1. Nat. Nanotechnol. 2013, 8, 385–389.

However, I need it the serial number to appear within round brackets as

(1) Nat. Nanotechnol. 2013, 8, 385–389.

My working example:

\documentclass[journal=ancac3,manuscript=article]{achemso}
\setkeys{acs}{articletitle = true}

\usepackage[version=3]{mhchem} % Formula subscripts using \ce{}
\usepackage[T1]{fontenc}       % Use modern font encodings
\usepackage{amssymb,amsmath}
\usepackage{graphicx}
\usepackage{color}
\usepackage[table,xcdraw]{xcolor}
\usepackage{upgreek}
\usepackage{breqn}
\usepackage{mciteplus}
\usepackage[toc]{appendix}

\begin{document}
\bibliography{Citation}
\end{document}

• Welcome to TeX.SX!! You can highlight code in your post using back-ticks. For code-blocks indent them by four spaces or use the {} on the gui. – user30471 Aug 24 '16 at 3:15
• Related: tex.stackexchange.com/questions/82570/…. You might also want to look at the cite package – user30471 Aug 24 '16 at 3:18
• I haven't tried it, but in other classes, this might work: \makeatletter \renewcommand*{\@biblabel}[1]{(#1)\hfill} \makeatother – Steven B. Segletes Aug 24 '16 at 10:27

It is just one line you have to add. Ask your editor if this change is ok, since the defaults are preset according to the journals requirements.

\documentclass[journal=ancac3,manuscript=article]{achemso}
\setkeys{acs}{
articletitle = true,
biblabel = brackets% <--- this line
}

\usepackage[version=3]{mhchem} % Formula subscripts using \ce{}
\usepackage[T1]{fontenc}       % Use modern font encodings
\usepackage{amssymb,amsmath}
\usepackage{graphicx}
\usepackage{color}
\usepackage[table,xcdraw]{xcolor}
\usepackage{upgreek}
\usepackage{breqn}
\usepackage{mciteplus}
\usepackage[toc]{appendix}

\title{The Wombat}
\begin{document}
\cite{doody}
\bibliography{biblatex-examples}
\end{document}