product Name：4-sulphophthalic anhydride
  • 5-Isobenzofuransulfonic acid, 1,3-dihydro-1,3-dioxo-; 4-Sulfophthalic anhydride; NSC 26435; 4-Sulphophthalic anhydride; Phthalic anhydride, 4-sulfo- (8CI); 1,3-dioxo-1,3-dihydro-2-benzofuran-5-sulfonic acid
  • 134-08-7
  • 205-128-2
  • C8H4O6S
  • 228.1788
  • InChI=1/C8H4O6S/c9-7-5-2-1-4(15(11,12)13)3-6(5)8(10)14-7/h1-3H,(H,11,12,13)
  • 4-磺基邻苯二甲酸酐 134-08-7
  • 1.82g/cm3
  • 1.66