The model contains one compartment called "compartment". There are three species named S1, S2 and S3 and two parameters named k1 and k2. Both species S1 and S3 are labeled as an SBML boundary species. The model contains one reaction defined as:

Reaction Rate
S1 → S2 compartment · k2 · S1

The model contains one rule:

Type Variable Formula
Assignment S3 k1 · S2

In this case there is no initial value declared for species S3. Thus the initial value must be calculated by the assignmentRule.

The initial conditions are as follows:

Value Units
Initial amount of S1 1.0 × 10−4 mole
Initial amount of S2 1.5 × 10−4 mole
Initial amount of S3 undeclared mole
Value of parameter k1 1.05 dimensionless
Value of parameter k2 1.15 second-1
Volume of compartment "compartment" 1 litre

The species values are given as amounts of substance 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.