HMDB0011110 RDKit 3D Hydrogen selenide 3 2 0 0 0 0 0 0 0 0999 V2000 -0.0019 0.5887 -0.0000 Se 0 0 0 0 0 2 0 0 0 0 0 0 1.2519 -0.2937 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 -1.2501 -0.2950 -0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 1 3 1 0 M END