H 1392a (OTTO) 1-Hexanethiol, 97% Cas 111-31-9 - used to tune the electrical characteristics in networked carbon nanotube field-effect transistors. H 1392a (OTTO) 1-Hexanethiol, 97% Cas 111-31-9 - used as a monolayer on copper surfaces to retard surface oxidation during exposure to the environment which can then be desorbed effectively with an annealing step in inert N2 to provide a clean Cu surface.