1,3-Isobenzofurandione, 3a,4,7,7a-tetrahydro-

• Formula: C₈H₈O₃
• Molecular weight: 152.1473
• IUPAC Standard InChI: InChI=1S/C8H8O3/c9-7-5-3-1-2-4-6(5)8(10)11-7/h1-2,5-6H,3-4H2 Copy

  
• IUPAC Standard InChIKey: KMOUUZVZFBCRAM-UHFFFAOYSA-N Copy
• CAS Registry Number: 85-43-8
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Stereoisomers:
  • cis-1,2,3,6-Tetrahydrophthalic anhydride
• Other names: 4-Cyclohexene-1,2-dicarboxylic anhydride; Δ4-Tetrahydrophthalic anhydride; Butadiene-maleic anhydride adduct; Maleic anhydride adduct of butadiene; Tetrahydrophthalic acid anhydride; Tetrahydrophthalic anhydride; 1,2,3,6-Tetrahydrophthalic acid anhydride; 1,2,3,6-Tetrahydrophthalic anhydride; 4-Cyclohexene-1,2-dicarboxylic acid anhydride; Anhydrid kyseliny tetrahydroftalove; Memtetrahydro phtalic anhydride; Phthalic anhydride, 1,2,3,6-tetrahydro-; Tetrahydroftalanhydrid; THPA; Cyclohex-4-en-1,2-dicarboxylic acid anhydride; NSC 82642; Rikacid TH
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• Information on this page:
  • Reaction thermochemistry data
  • Mass spectrum (electron ionization)
  • References
  • Notes
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Reaction thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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Individual Reactions

=  + 

By formula: C₈H₈O₃ = C₄H₆ + C₄H₂O₃

 +  =

By formula: C₄H₆ + C₄H₂O₃ = C₈H₈O₃

Mass spectrum (electron ionization)

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

References

Go To: Top, Reaction thermochemistry data, Mass spectrum (electron ionization), Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Ghitau, Ciopec, et al., 1983
Ghitau, M.; Ciopec, M.; Pintea, O., Study on Diels-Alder reaction for the synthesis of tetrahydrophthalic anhydride, Rev. Chim. (Bucharest), 1983, 34, 299-305. [all data]

Notes

Go To: Top, Reaction thermochemistry data, Mass spectrum (electron ionization), References

• Symbols used in this document:
  

  ΔrH°	Enthalpy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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