RDKit 2 0 0 0 0 0 0 0 0 0999 V2000 0.0000 0.0000 0.0000 F 0 0 0 0 0 0 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 M CHG 2 1 -1 2 1 M END > 5235 > sodium fluoride $$$$