Thiolate
= Thiolate
{title2=$\mathrm{RS^-}$}
A <thiolate> is $\mathrm{RS^-}$, the <conjugate base> of a <thiol>. Its polarizable <sulfur> is often effective in <conjugate addition>. <protonation> of the resulting <carbon> anion can regenerate <thiolate> from another <thiol> molecule.