Minimal example derived from CHEBI:60197 Mrv0541 03051505372D 25 32 0 0 0 0 999 V2000 -1.6487 0.7096 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 -0.7096 1.6696 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 0.0000 2.0870 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 0.7305 1.6696 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 1.6696 0.7096 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 2.0871 0.0000 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 1.6696 -0.7096 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 0.7305 -1.6697 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 -0.7096 -1.6697 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.6487 -0.7096 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 -2.0661 0.0000 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 0.8557 0.8557 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 0.8557 -0.8557 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 -0.8348 -0.8557 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 -2.0244 1.4609 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 1.4610 2.0453 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 2.0662 -1.4609 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.4400 2.0453 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 2.0662 1.4609 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 -0.8348 0.8557 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 0.0000 0.0000 0.0000 Mg 0 0 0 0 0 0 0 0 0 0 0 0 0.0000 -2.0871 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 1.4610 -2.0453 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.4400 -2.0453 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 -2.0244 -1.4609 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 1 20 1 0 0 0 0 15 1 2 0 0 0 0 1 11 1 0 0 0 0 2 3 1 0 0 0 0 20 2 1 0 0 0 0 18 2 2 0 0 0 0 3 4 2 0 0 0 0 4 12 1 0 0 0 0 16 4 1 0 0 0 0 5 6 1 0 0 0 0 12 5 2 0 0 0 0 19 5 1 0 0 0 0 6 7 2 0 0 0 0 7 13 1 0 0 0 0 7 17 1 0 0 0 0 8 22 2 0 0 0 0 23 8 1 0 0 0 0 13 8 1 0 0 0 0 9 22 1 0 0 0 0 14 9 2 0 0 0 0 24 9 1 0 0 0 0 10 11 2 0 0 0 0 14 10 1 0 0 0 0 25 10 1 0 0 0 0 21 13 1 0 0 0 0 18 15 1 0 0 0 0 16 19 2 0 0 0 0 17 23 2 0 0 0 0 25 24 1 0 0 0 0 20 21 1 0 0 0 0 12 21 8 0 0 0 0 14 21 8 0 0 0 0 M END