Template:Chembox ECNumber/format
{{#switch:{{{localValue|}}}
|=
|#default={{#if:{{{ix_label|}}}|{{{ix_label|}}}: }}{{{localValue}}}{{#if:{{{comment|}}} | {{{comment}}}}}}}
{{#switch:{{{localValue|}}}
|=
|#default={{#if:{{{ix_label|}}}|{{{ix_label|}}}: }}{{{localValue}}}{{#if:{{{comment|}}} | {{{comment}}}}}}}