The model contains one compartment called C. There are three species called S1, S2 and S3. The model contains two reactions defined as:

Reaction Rate
S1 → S2 k · S1 · C,
S2 → S3 k · S2 · C,

Reaction S1 → S2 defines one local parameter k. Reaction S2 → S3 also defines one (different) local parameter k. Both of these parameters have a scope local to the defining reaction.

The initial conditions are as follows:

Value Units
Initial concentration of S1 3.0 × 10−3 mole litre-1
Initial concentration of S2 0 mole litre-1
Initial concentration of S3 0 mole litre-1
Value of local parameter k 1 second-1
Value of local parameter k 2 second-1
Volume of compartment C 1 litre