丁炔二酸

{{chembox
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 477240442
| Reference =
| ImageFile = Acetylenedicarboxylic acid.svg
| ImageSize =
| ImageName = Structural formula of acetylenedicarboxylic acid
| ImageFile1 = Acetylenedicarboxylic-acid-3D-balls.png
| ImageSize1 = 220px
| ImageName1 = Ball-and-stick model
| PIN = But-2-ynedioic acid
| OtherNames =乙炔二甲酸
|Section1=
|Section2={{Chembox Properties
| C=4 | H=2 | O=4
| Appearance = 晶体
| Density =
| MeltingPt= （分解）。

參考資料