C8H4O6S,9-7-5-2H-1H-4(15(11,12)13H)3H-6(5)8(10)14-7
C8H4O6S,9-7-5-2H-1H-4(15(11,12)13)3H-6(5)8(10)14-7,(H,11,12,13)
134-08-7
O=C1OC(=O)c2ccc(cc12)S(=O)(=O)O
Phthalic anhydride, 4-sulfo- (8CI)
4-Sulfophthalic anhydride
5-Isobenzofuransulfonic acid, 1,3-dihydro-1,3-dioxo- (9CI)