[ Eq(Derivative(x36, t), 0/k68),
  Eq(Derivative(x37, t), 0/k68),
  Eq(Derivative(x38, t), 0/k68),
  Eq(Derivative(x39, t), 0/k68),
  Eq(Derivative(x40, t), 0/k68),
  Eq(Derivative(x41, t), 0/k68),
  Eq(Derivative(x42, t), 0/k68),
  Eq(Derivative(x43, t), 0/k68),
  Eq(Derivative(x1, t), k1*x4*x3 - k2*x25 + k3*x2*x32 + k4*x2*x30 - k42*x25*x22 - k43*x26*x21),
  Eq(Derivative(x2, t), k1*x5*x3 - k2*x2 - k3*x2*x32 - k4*x2*x30),
  Eq(Derivative(x3, t), (-(k1*x4*x3 - k2*x25)) - (k1*x5*x3 - k2*x2)),
  Eq(Derivative(x4, t), (-(k1*x4*x3 - k2*x25)) + k3*x5*x32),
  Eq(Derivative(x5, t), (-(k1*x5*x3 - k2*x2)) - k3*x5*x32),
  Eq(Derivative(x6, t), k5/k6*x7*x25 + k7*x7*x18/(k8 + x7) - k44*x22*x6),
  Eq(Derivative(x7, t), (-k5/k6)*x7*x25 - k7*x7*x18/(k8 + x7)),
  Eq(Derivative(x8, t), k9/k10*x9*x25 + k11*x27*x31/(x43*k12) + k13*x27*x28*x31/(x43**2*k15*k13) - (k17*x30*x21 - k18*x22) - (k45*x20 + k46*x36 + k47*x37 + k48*x40)*x30 - k49*x20*x29),
  Eq(Derivative(x9, t), (-k9/k10)*x9*x25 - k11*x27*x31/(x43*k12) - k13*x27*x28*x31/(x43**2*k15*k13)),
  Eq(Derivative(x10, t), k19*x43*x30*x11 + k20*x29*x33/x43 - (k50*x20 + k51*x36 + k52*x37 + k53*x40 + k54*x39)*x32),
  Eq(Derivative(x11, t), (-k19)*x43*x30*x11 - k20*x29*x33/x43),
  Eq(Derivative(x12, t), k21/k22*x13*x32),
  Eq(Derivative(x13, t), (-k21/k22)*x13*x32),
  Eq(Derivative(x14, t), k23*x15*x32/(k24 + x32) - k55*x14),
  Eq(Derivative(x15, t), (-k23)*x15*x32/(k24 + x32)),
  Eq(Derivative(x16, t), k25*x17*x32/(k26 + x32) - k56*x23*x35),
  Eq(Derivative(x17, t), (-k25)*x17*x32/(k26 + x32)),
  Eq(Derivative(x18, t), k27*x43*x19*x32 - (k57*x20 + k58*x38 + k59*x37 + k60*x40 + k61*x41)*x18),
  Eq(Derivative(x19, t), (-k27)*x43*x19*x32),
  Eq(Derivative(x20, t), (-(k44*x6 + k45*x30 + k49*x29 + k50*x32 + k57*x18))*x20),
  Eq(Derivative(x21, t), (-(k17*x30*x21 - k18*x22)) - k43*x26*x21),
  Eq(Derivative(x22, t), k17*x30*x21 - k18*x22 - k42*x25*x22),
  Eq(Derivative(x23, t), k28*x24*x32 - (k62*x36 + k63*x38 + k64*x37 + k65*x40)*x23),
  Eq(Derivative(x24, t), (-k28)*x24*x32) ]