diff --git a/interfaces/cython/cantera/test/test_convert.py b/interfaces/cython/cantera/test/test_convert.py
index 10ef0c770..a5953ef44 100644
--- a/interfaces/cython/cantera/test/test_convert.py
+++ b/interfaces/cython/cantera/test/test_convert.py
@@ -232,14 +232,22 @@ class chemkinConverterTest(utilities.CanteraTest):
         self.checkKinetics(ref, gas, [300, 800, 1450, 2800], [5e3, 1e5, 2e6])
 
         # Reactions with explicit reverse rate constants are transformed into
-        # two irreversible reactions with reactants and products swapped.
+        # two irreversible reactions with reactants and products swapped, unless
+        # the explicit reverse rate is zero so only the forward reaction is used.
         Rr = gas.reverse_rate_constants
         self.assertEqual(Rr[0], 0.0)
         self.assertEqual(Rr[1], 0.0)
+        self.assertEqual(Rr[2], 0.0)
+        self.assertEqual(Rr[3], 0.0)
+        self.assertEqual(Rr[4], 0.0)
         Rstoich = gas.reactant_stoich_coeffs()
         Pstoich = gas.product_stoich_coeffs()
-        self.assertEqual(list(Rstoich[:,0]), list(Pstoich[:,1]))
-        self.assertEqual(list(Rstoich[:,1]), list(Pstoich[:,0]))
+        self.assertEqual(list(Rstoich[:, 0]), list(Pstoich[:, 1]))
+        self.assertEqual(list(Rstoich[:, 1]), list(Pstoich[:, 0]))
+        self.assertEqual(list(Rstoich[:, 2]), list(Pstoich[:, 3]))
+        self.assertEqual(list(Rstoich[:, 3]), list(Pstoich[:, 2]))
+
+        self.assertEqual(gas.n_reactions, 5)
 
     def test_explicit_forward_order(self):
         convertMech(pjoin(self.test_data_dir, 'explicit-forward-order.inp'),
diff --git a/test/data/explicit-reverse-rate.inp b/test/data/explicit-reverse-rate.inp
index 3202b9c93..e4fc22bf3 100644
--- a/test/data/explicit-reverse-rate.inp
+++ b/test/data/explicit-reverse-rate.inp
@@ -4,7 +4,7 @@ END
 
 SPECIES
 H
-R1A R1B P1
+R1A R1B P1 R3 P3A P3B
 END
 
 REACTIONS
@@ -15,4 +15,7 @@ R1A+R1B <=> P1+H                1.0e19    0.0     5000.0
 R1A+R1B+M <=> P1+H+M            1.0e-2    0.0     5000.0
   REV/3.9000e12   1.0   6500.0/
 
+R3+H <=> P3A+P3B                       1.0e19    0.0     5000.0
+  REV/0.0000e00   0.0   0.0000/
+
 END
diff --git a/test/data/explicit-reverse-rate.xml b/test/data/explicit-reverse-rate.xml
index 3370fdf8c..60f33b1b1 100644
--- a/test/data/explicit-reverse-rate.xml
+++ b/test/data/explicit-reverse-rate.xml
@@ -5,7 +5,7 @@
   <!-- phase gas     -->
   <phase dim="3" id="gas">
     <elementArray datasrc="elements.xml">H C</elementArray>
-    <speciesArray datasrc="#species_data">H    R1A  R1B  P1</speciesArray>
+    <speciesArray datasrc="#species_data">H    R1A  R1B  P1  R3  P3A  P3B</speciesArray>
     <reactionArray datasrc="#reaction_data"/>
     <state>
       <temperature units="K">300.0</temperature>
@@ -25,12 +25,12 @@
       <thermo>
         <NASA Tmax="1000.0" Tmin="200.0" P0="100000.0">
            <floatArray name="coeffs" size="7">
-             2.500000000E+00,   7.053328190E-13,  -1.995919640E-15,   2.300816320E-18, 
+             2.500000000E+00,   7.053328190E-13,  -1.995919640E-15,   2.300816320E-18,
              -9.277323320E-22,   2.547365990E+04,  -4.466828530E-01</floatArray>
         </NASA>
         <NASA Tmax="3500.0" Tmin="1000.0" P0="100000.0">
            <floatArray name="coeffs" size="7">
-             2.500000010E+00,  -2.308429730E-11,   1.615619480E-14,  -4.735152350E-18, 
+             2.500000010E+00,  -2.308429730E-11,   1.615619480E-14,  -4.735152350E-18,
              4.981973570E-22,   2.547365990E+04,  -4.466829140E-01</floatArray>
         </NASA>
       </thermo>
@@ -42,12 +42,12 @@
       <thermo>
         <NASA Tmax="1000.0" Tmin="200.0" P0="100000.0">
            <floatArray name="coeffs" size="7">
-             5.149876130E+00,  -1.367097880E-02,   4.918005990E-05,  -4.847430260E-08, 
+             5.149876130E+00,  -1.367097880E-02,   4.918005990E-05,  -4.847430260E-08,
              1.666939560E-11,  -1.024664760E+04,  -4.641303760E+00</floatArray>
         </NASA>
         <NASA Tmax="3500.0" Tmin="1000.0" P0="100000.0">
            <floatArray name="coeffs" size="7">
-             7.485149500E-02,   1.339094670E-02,  -5.732858090E-06,   1.222925350E-09, 
+             7.485149500E-02,   1.339094670E-02,  -5.732858090E-06,   1.222925350E-09,
              -1.018152300E-13,  -9.468344590E+03,   1.843731800E+01</floatArray>
         </NASA>
       </thermo>
@@ -59,12 +59,12 @@
       <thermo>
         <NASA Tmax="1000.0" Tmin="200.0" P0="100000.0">
            <floatArray name="coeffs" size="7">
-             5.149876130E+00,  -1.367097880E-02,   4.918005990E-05,  -4.847430260E-08, 
+             5.149876130E+00,  -1.367097880E-02,   4.918005990E-05,  -4.847430260E-08,
              1.666939560E-11,  -1.024664760E+04,  -4.641303760E+00</floatArray>
         </NASA>
         <NASA Tmax="3500.0" Tmin="1000.0" P0="100000.0">
            <floatArray name="coeffs" size="7">
-             7.485149500E-02,   1.339094670E-02,  -5.732858090E-06,   1.222925350E-09, 
+             7.485149500E-02,   1.339094670E-02,  -5.732858090E-06,   1.222925350E-09,
              -1.018152300E-13,  -9.468344590E+03,   1.843731800E+01</floatArray>
         </NASA>
       </thermo>
@@ -76,19 +76,70 @@
       <thermo>
         <NASA Tmax="1000.0" Tmin="200.0" P0="100000.0">
            <floatArray name="coeffs" size="7">
-             5.149876130E+00,  -1.367097880E-02,   4.918005990E-05,  -4.847430260E-08, 
+             5.149876130E+00,  -1.367097880E-02,   4.918005990E-05,  -4.847430260E-08,
              1.666939560E-11,  -1.024664760E+04,  -4.641303760E+00</floatArray>
         </NASA>
         <NASA Tmax="3500.0" Tmin="1000.0" P0="100000.0">
            <floatArray name="coeffs" size="7">
-             7.485149500E-02,   1.339094670E-02,  -5.732858090E-06,   1.222925350E-09, 
+             7.485149500E-02,   1.339094670E-02,  -5.732858090E-06,   1.222925350E-09,
              -1.018152300E-13,  -9.468344590E+03,   1.843731800E+01</floatArray>
         </NASA>
       </thermo>
     </species>
-  </speciesData>
-  <reactionData id="reaction_data">
 
+    <!-- species R3    -->
+    <species name="R3">
+      <atomArray>H:7 C:2 </atomArray>
+      <thermo>
+        <NASA Tmax="1000.0" Tmin="200.0" P0="100000.0">
+           <floatArray name="coeffs" size="7">
+             5.149876130E+00,  -1.367097880E-02,   4.918005990E-05,  -4.847430260E-08,
+             1.666939560E-11,  -1.024664760E+04,  -4.641303760E+00</floatArray>
+        </NASA>
+        <NASA Tmax="3500.0" Tmin="1000.0" P0="100000.0">
+           <floatArray name="coeffs" size="7">
+             7.485149500E-02,   1.339094670E-02,  -5.732858090E-06,   1.222925350E-09,
+             -1.018152300E-13,  -9.468344590E+03,   1.843731800E+01</floatArray>
+        </NASA>
+      </thermo>
+    </species>
+
+    <!-- species P3A    -->
+    <species name="P3A">
+      <atomArray>H:4 C:1 </atomArray>
+      <thermo>
+        <NASA Tmax="1000.0" Tmin="200.0" P0="100000.0">
+          <floatArray name="coeffs" size="7">
+            5.149876130E+00,  -1.367097880E-02,   4.918005990E-05,  -4.847430260E-08,
+            1.666939560E-11,  -1.024664760E+04,  -4.641303760E+00</floatArray>
+        </NASA>
+        <NASA Tmax="3500.0" Tmin="1000.0" P0="100000.0">
+          <floatArray name="coeffs" size="7">
+            7.485149500E-02,   1.339094670E-02,  -5.732858090E-06,   1.222925350E-09,
+            -1.018152300E-13,  -9.468344590E+03,   1.843731800E+01</floatArray>
+        </NASA>
+      </thermo>
+    </species>
+
+    <!-- species P3B    -->
+    <species name="P3B">
+      <atomArray>H:4 C:1 </atomArray>
+      <thermo>
+        <NASA Tmax="1000.0" Tmin="200.0" P0="100000.0">
+          <floatArray name="coeffs" size="7">
+            5.149876130E+00,  -1.367097880E-02,   4.918005990E-05,  -4.847430260E-08,
+            1.666939560E-11,  -1.024664760E+04,  -4.641303760E+00</floatArray>
+        </NASA>
+        <NASA Tmax="3500.0" Tmin="1000.0" P0="100000.0">
+          <floatArray name="coeffs" size="7">
+            7.485149500E-02,   1.339094670E-02,  -5.732858090E-06,   1.222925350E-09,
+            -1.018152300E-13,  -9.468344590E+03,   1.843731800E+01</floatArray>
+        </NASA>
+      </thermo>
+    </species>
+  </speciesData>
+
+  <reactionData id="reaction_data">
     <!-- reaction 0001    -->
     <reaction reversible="no" id="0001">
       <equation>R1A + R1B =] P1 + H</equation>
@@ -144,6 +195,20 @@
       <reactants>H:1 P1:1.0</reactants>
       <products>R1B:1 R1A:1.0</products>
     </reaction>
-  </reactionData>
+
+  <!-- reaction 0005    -->
+  <reaction reversible="no" id="0005">
+    <equation>R3 + H =] P3A + P3B</equation>
+    <rateCoeff>
+      <Arrhenius>
+         <A>1.000000E+16</A>
+         <b>0.0</b>
+         <E units="cal/mol">5000.000000</E>
+      </Arrhenius>
+    </rateCoeff>
+    <reactants>R3:1 H:1.0</reactants>
+    <products>P3A:1 P3B:1.0</products>
+  </reaction>
+</reactionData>
 
 </ctml>