RDKit 2 0 0 0 0 0 0 0 0 0999 V2000 0.0000 0.0000 0.0000 N 0 0 0 0 0 0 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 2 1 1 2 -1 M END > 25515 > Ammonium bisulfide $$$$