中文名称：3,4-二羟基-3-环丁烯-1,2-二酮
  • 方形酸; 方酸; 四方酸;
  • 3,4-Dihydroxy-3-cyclobutene-1,2-dione
  • Squaric acid; 3,4-dihydroxycyclobut-3-ene-1,2-dione; 4-hydroxycyclobutane-1,2,3-trione; 1,2-Dihydroxycyclobutene-3,4-dione; 3,4-dihydroxy-3-cyclobutene-2-dione
  • 2892-51-5
  • 220-761-4
  • C4H2O4
  • 114.0563
  • InChI=1/C4H2O4/c5-1-2(6)4(8)3(1)7/h1,5H
  • 3,4-二羟基-3-环丁烯-1,2-二酮 2892-51-5
  • 1.985g/cm3
  • 293℃
  • 299.7°C at 760 mmHg
  • 149.3°C
  • 20 g/L (30℃)
  • 0.000117mmHg at 25°C
  •  Xi:Irritant;
  • R36/37/38:;
  • S26:;
    S37/39:;