Before revision:  In their interpretation by ordinary differential equations, CRNs provide a Turing-complete model of analog computation , in the sense that any computable function over the reals can be computed by a finite number of molecular species with a continuous CRN which approximates the result of that function in one of its components in arbitrary precision.
After revision:  In their interpretation by ordinary differential equations, CRNs provide a Turing-complete model of analog computattion , in the sense that any computable function over the reals can be computed by a finite number of molecular species with a continuous CRN which approximates the result of that function in one of its components in arbitrary precision.