k1 = k1
k2 = k2
k3 = k3
k4 = k4
k5 = k5
k6 = k6
k7 = k7
k8 = k9
k9 = k10
k10 = k11
k11 = k12
k12 = k13a
k13 = k13b
k14 = k17
k15 = k18
k16 = k19
k17 = HO2star
k18 = Cu_I_ZnSOD
k19 = compartment_0000001