me="l00285"></a><span class="lineno">  285</span>&#160;                                              <span class="stringliteral">&#39;MN&#39;</span>,  <span class="comment"># manganese (ii) ion</span></div><div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;                                              <span class="stringliteral">&#39;CNN&#39;</span>,  <span class="comment"># cyanamide</span></div><div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;       