Drawing of a synthesis of 7-methoxycarbonyl-1,2,3-benzothiadiazole. This is converted in further steps to the fungicide acibenzolar-S-methyl
<a href="//commons.wikimedia.org/wiki/User:Michael_D._Turnbull" title="User:Michael D. Turnbull">Michael D. Turnbull</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>