SO4 -OEChem-09272417253D 5 4 0 0 0 0 0 0 0999 V2000 16.4850 34.9240 5.5750 S 0 0 0 0 0 0 0 0 0 0 0 0 17.7410 34.8910 4.8260 O 0 0 0 0 0 0 0 0 0 0 0 0 16.7870 35.8260 6.7330 O 0 0 0 0 0 0 0 0 0 0 0 0 15.4400 35.5510 4.4010 O 0 5 0 0 0 0 0 0 0 0 0 0 16.1410 33.7200 5.9300 O 0 5 0 0 0 0 0 0 0 0 0 0 1 2 2 0 0 0 0 1 3 2 0 0 0 0 1 4 1 0 0 0 0 1 5 1 0 0 0 0 M CHG 2 4 -1 5 -1 M END > [O-]S(=O)(=O)[O-] > InChI=1S/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)/p-2 > QAOWNCQODCNURD-UHFFFAOYSA-L > O4S-2 $$$$