Now that we have a good idea as to how the mass action equations of the indicator reaction scale, we want to try and find closed-form asymptotic solutions to the mass action equations or, at the very least, try and reduce the dimension of the mass action differential equations. The exact form of the scaled mass action equations will depend on the slow timescales of both the observable and non-observable indicator reactions. Thus, given that the respective depletion timescales of the indicator and non-observable reactions are T s2 and t s1 , we will analyze