American Dye Source, Inc. is now offering high molecular weight regioregular and low metal content poly(3-alkyl thiophene) and poly(3-methyl-4-alkyl thiophene) for electronic applications that include organic photovoltaic, sensory, organic light emitting displays and field effect transistors. These polythiophene derivatives are highly soluble in common organic solvents, such as tetrahydrofuran, chloroform, dichloromethane, toluene and xylene. Please contact us for more information regarding these products.