The model contains one compartment called C. There are two species called S1 and S2 and one parameter called k1. The model contains one reaction:

Reaction Rate
S1 → S2 k1 · S1 · C · t

where the symbol 't' denotes the current simulation time.

The initial conditions are as follows:

Value Units
Initial amount of S1 1.5 × 10−4 mole
Initial amount of S2 0 mole
Value of parameter k1 1 second-2
Volume of compartment C 1 litre

The species' initial quantities are given in terms of substance units to make it easier to use the model in a discrete stochastic simulator, but (as per usual SBML principles) their symbols represent their values in concentration units where they appear in expressions.

Note: The test data for this model was generated from an analytical solution of the system of equations.