RDKit 3 0 0 0 0 0 0 0 0 0999 V2000 0.0000 0.0000 0.0000 Na 0 0 0 0 0 15 0 0 0 0 0 0 0.0000 0.0000 0.0000 Na 0 0 0 0 0 15 0 0 0 0 0 0 0.0000 0.0000 0.0000 S 0 0 0 0 0 0 0 0 0 0 0 0 M CHG 3 1 1 2 1 3 -1 M END > 237873 > sodium sulfide $$$$