1) Simple aromatic ring
Found on
https://www.crosswordclues.com/clue/benzothiazole
Benzothiazole is an aromatic heterocyclic compound with the chemical formula {Chem|C|7|H|5|N||S}. It is colorless, slightly viscous liquid. Although the parent compound, benzothiazole is not widely used, many of its derivatives are found in commercial products or in nature. A derivative of benzothiazole is the light-emitting component of luciferin...
Found on
http://en.wikipedia.org/wiki/Benzothiazole
No exact match found.
