3,3′,4,4′-Diphenyl sulfone tetracarboxylic dianhydride

CAS Registry Number®

2540-99-0
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CAS Name

3,3′,4,4′-Diphenyl sulfone tetracarboxylic dianhydride

Molecular Formula

C16H6O8S

Molecular Mass

358.28

Cite this Page

3,3′,4,4′-Diphenyl sulfone tetracarboxylic dianhydride.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=2540-99-0 (retrieved 2024-09-07) (CAS RN: 2540-99-0).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    275-278 °C

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C16H6O8S/c17-13-9-3-1-7(5-11(9)15(19)23-13)25(21,22)8-2-4-10-12(6-8)16(20)24-14(10)18/h1-6H

InChIKey

InChIKey=ZHBXLZQQVCDGPA-UHFFFAOYSA-N

SMILES

O=C1C=2C(=CC=C(S(=O)(=O)C=3C=C4C(=CC3)C(=O)OC4=O)C2)C(=O)O1

Canonical SMILES

O=C1OC(=O)C2=CC(=CC=C12)S(=O)(=O)C3=CC=C4C(=O)OC(=O)C4=C3

Other Names for this Substance

  • 1,3-Isobenzofurandione, 5,5′-sulfonylbis-
  • Phthalic anhydride, 4,4′-sulfonyldi-
  • 5,5′-Sulfonylbis[1,3-isobenzofurandione]
  • 3,3′,4,4′-Tetracarboxydiphenyl sulfone dianhydride
  • 4,4′-Sulfonylbis(phthalic anhydride)

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Deleted or Replaced CAS Registry Numbers

163915-32-0, 174612-55-6