HMDB0255649 RDKit 3D Nitrogen dioxide 3 2 0 0 0 0 0 0 0 0999 V2000 1.1586 -0.2035 0.0000 O 0 0 0 0 0 1 0 0 0 0 0 0 -0.0574 0.4407 -0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 -1.1011 -0.2372 -0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 2 3 2 0 M RAD 1 1 2 M END