2-Butynedioic acid, dimethyl ester

• Formula: C₆H₆O₄
• Molecular weight: 142.1094
• IUPAC Standard InChI: InChI=1S/C6H6O4/c1-9-5(7)3-4-6(8)10-2/h1-2H3 Copy

  
• IUPAC Standard InChIKey: VHILMKFSCRWWIJ-UHFFFAOYSA-N Copy
• CAS Registry Number: 762-42-5
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: Acetylenedicarboxylic acid, dimethyl ester; Bis(methoxycarbonyl)acetylene; Dimethyl acetylenedicarboxylate; Dimethyl butynedioate; Dimethyl 2-butynedioate; Methyl acetylenedicarboxylate; 1,2-Bis(methoxycarbonyl)acetylene; Dimethyl acetylenedicarboxylic acid; Dimethyl 1,2-acetylenedicarboxylate; Dimethyl butyne-1,4-dioate; Dimethyl ethynedicarboxylate; 1,2-Bis(methoxycarbonyl)ethyne; Butynedioic acid dimethyl ester; Bis(carbomethoxy)acetylene; Di(carbomethoxy)acetylene; But-2-ynedioic acid dimethyl ester; 2-Butynedioic acid, 1,4-dimethyl ester; NSC 14912
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• Information on this page:
  • Phase change data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • IR Spectrum
  • Mass spectrum (electron ionization)
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Phase change 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: Robert L. Brown and Stephen E. Stein

Reduced pressure boiling point

Gas phase ion energetics 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: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

References

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

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Sustmann and Trill, 1972
Sustmann, R.; Trill, H., Photoelektronenspektroskopische Bestimmung von Substituenten-Effekten. II. α,β-ungesattigte Carbonester, Tetrahedron Lett., 1972, 42, 4271. [all data]

Notes

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• Symbols used in this document:
  

  Tboil

  Boiling point

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