HMDB0001361 RDKit 3D Carbon monoxide 2 1 0 0 0 0 0 0 0 0999 V2000 0.5613 0.0000 0.0000 C 0 0 0 0 0 3 0 0 0 0 0 0 -0.5613 0.0000 0.0000 O 0 0 0 0 0 3 0 0 0 0 0 0 1 2 3 0 M CHG 2 1 -1 2 1 M END