--- a
+++ b/tests/data/pdb/4lb3_ligand.sdf
@@ -0,0 +1,54 @@
+
+     RDKit          3D
+
+ 24 25  0  0  0  0  0  0  0  0999 V2000
+    4.1860   -3.9740   11.3720 F   0  0  0  0  0  0  0  0  0  0  0  0
+    5.4090   -4.4850   11.5430 C   0  0  0  0  0  0  0  0  0  0  0  0
+    6.2320   -3.9510   12.5250 C   0  0  0  0  0  0  0  0  0  0  0  0
+    7.5010   -4.4770   12.6700 C   0  0  0  0  0  0  0  0  0  0  0  0
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+    5.8130   -5.5260   10.7290 C   0  0  0  0  0  0  0  0  0  0  0  0
+    4.8470   -6.0460    9.6620 C   0  0  0  0  0  0  0  0  0  0  0  0
+    5.5670   -6.8750    8.7210 N   0  0  0  0  0  0  0  0  0  0  0  0
+    5.6170   -8.1960    8.8300 C   0  0  0  0  0  0  0  0  0  0  0  0
+    5.0740   -8.7730    9.7640 O   0  0  0  0  0  0  0  0  0  0  0  0
+    6.4940   -8.9320    7.8610 C   0  0  0  0  0  0  0  0  0  0  0  0
+    7.0760  -10.1060    8.3170 C   0  0  0  0  0  0  0  0  0  0  0  0
+    7.9510  -10.8370    7.5390 C   0  0  0  0  0  0  0  0  0  0  0  0
+    8.2470  -10.3480    6.2850 C   0  0  0  0  0  0  0  0  0  0  0  0
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+    6.7520   -6.6030    5.0620 C   0  0  0  0  0  0  0  0  0  0  0  0
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+    8.7040   -5.3980    4.5580 O   0  0  0  0  0  0  0  0  0  0  0  0
+    8.2090   -5.6880    6.7110 O   0  0  0  0  0  0  0  0  0  0  0  0
+  1  2  1  0
+  2  3  2  0
+  2  8  1  0
+  3  4  1  0
+  4  5  1  0
+  4  6  2  0
+  6  7  1  0
+  7  8  2  0
+  8  9  1  0
+  9 10  1  0
+ 10 11  1  0
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+ 13 19  1  0
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+ 15 16  2  0
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+ 16 18  1  0
+ 18 19  2  0
+ 19 20  1  0
+ 20 21  1  0
+ 21 22  1  0
+ 22 23  2  0
+ 22 24  1  0
+M  END