Maleic anhydride

CAS Registry Number®

108-31-6
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CAS Name

Maleic anhydride

Molecular Formula

C4H2O3

Molecular Mass

98.06

Cite this Page

Maleic anhydride.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=108-31-6 (retrieved 2024-04-24) (CAS RN: 108-31-6).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    202.0 °C @ Press: 760 Torr

  • Melting Point (1)

    52.8 °C

  • Density (1)

    1.48 g/cm³

Source(s)

  • (1) Hazardous Substances Data Bank data were obtained from the National Library of Medicine (US)

Other Names and Identifiers

InChI

InChI=1S/C4H2O3/c5-3-1-2-4(6)7-3/h1-2H

InChIKey

InChIKey=FPYJFEHAWHCUMM-UHFFFAOYSA-N

SMILES

O=C1OC(=O)C=C1

Canonical SMILES

O=C1OC(=O)C=C1

Other Names for this Substance

  • 2,5-Furandione
  • Maleic anhydride
  • cis-Butenedioic anhydride
  • Maleic acid anhydride
  • Toxilic anhydride

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Deleted or Replaced CAS Registry Numbers

184288-31-1, 1190407-73-8, 1229972-04-6, 1380217-40-2, 2254521-46-3

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