RDKit 3D 2 1 0 0 0 0 0 0 0 0999 V2000 0.5550 0.0000 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 -0.5550 0.0000 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 1 2 3 0 M END