2-Butynedioic acid

CAS Registry Number®

142-45-0

CAS Name

2-Butynedioic acid

Molecular Formula

C4H2O4

Molecular Mass

114.06

Cite this Page

2-Butynedioic acid.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=142-45-0 (retrieved 2024-11-24) (CAS RN: 142-45-0).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    193-194 °C

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C4H2O4/c5-3(6)1-2-4(7)8/h(H,5,6)(H,7,8)

InChIKey

InChIKey=YTIVTFGABIZHHX-UHFFFAOYSA-N

SMILES

C(#CC(O)=O)C(O)=O

Canonical SMILES

O=C(O)C#CC(=O)O

Other Names for this Substance

  • 2-Butynedioic acid
  • Acetylenedicarboxylic acid
  • Butynedioic acid
  • 2-Butyne-1,4-dioic acid
  • NSC 1903

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