Alkanethiol SAMs are stable at potentials between approximately 0.8 and 1.4 V versus SCE, which is compatible with most electrochemical applications. Outside of this potential window, the thiol may be oxidised or reduced, causing them to desorb from the surface. The exact potential at which this desorption occurs is dependent on the alkanethiol's structure, including the length of the alky chain. This can be used to control the formation of the SAM, as demonstrated by Satjapipat et al. Their mixed SAM consisted of 3-mercaptopropionic acid (MPA) and mercaptohexanol (MCH).