CAS 134-08-7

1,3-Dihydro-1,3-dioxo-5-isobenzofuransulfonic acid

Description:

1,3-Dihydro-1,3-dioxo-5-isobenzofuransulfonic acid, commonly referred to as "DBS" or "Dibenzothiophene sulfonic acid," is an organic compound characterized by its sulfonic acid functional group and a fused bicyclic structure. It typically appears as a white to light yellow solid and is soluble in water, which is a notable property for its applications in various chemical processes. The compound features a dioxo group, contributing to its reactivity and potential as a reagent in organic synthesis. Its sulfonic acid group enhances its acidity and makes it useful as a catalyst or in the formulation of surfactants. Additionally, DBS is known for its role in the synthesis of dyes and pigments, as well as in the development of pharmaceuticals. Safety data indicates that it should be handled with care, as with many sulfonic acids, due to potential irritant properties. Overall, its unique structural features and functional groups make it a valuable compound in both industrial and research settings.

Formula: C₈H₄O₆S

InChI: InChI=1S/C8H4O6S/c9-7-5-2-1-4(15(11,12)13)3-6(5)8(10)14-7/h1-3H,(H,11,12,13)

InChI key: InChIKey=VJDQIBUPTBGINF-UHFFFAOYSA-N

SMILES: O=C1C=2C(C(=O)O1)=CC=C(S(=O)(=O)O)C2

Synonyms:

• 1,3-Dihydro-1,3-dioxo-5-isobenzofuransulfonic acid
• 1,3-Dioxo-1,3-Dihydro-2-Benzofuran-5-Sulfonic Acid
• 1,3-Dioxo-1,3-dihydroisobenzofuran-5-sulfonic acid
• 4-Sulfophthalic anhydride
• 5-Isobenzofuransulfonic acid, 1,3-dihydro-1,3-dioxo-
• Nsc 26435
• Phthalic anhydride, 4-sulfo-
• Phthalic anhydride, 4-sulfo- (8CI)

1,3-Dioxo-1,3-dihydro-2-benzofuran-5-sulfonic acid

CAS: 134-08-7

Ref: 7W-GK6813