English name: 3,4-Diethoxy-3-cyclobutene-1,2-dione English alias:

3,4-Diethoxycyclobut-3-ene-1,2-dione;

3,4-Diethoxy-3-Cyclobutene-1,2-Dione;

3,4-diethoxycyclobut-3-ene-1,2-dione;

Diethyl Squarate;

Squaric Acid Diethyl Ester;

CAS No. 5231-87-8

Molecular formula: C8H10O4

Molecular weight: 170.16300

Appearance and properties: transparent yellow to light brown liquid

Density: 1.15 g/mL at 25 degrees C (lit.)

Boiling point: 95 degrees C 0.1 mm Hg (lit.)

Flash point: > 230 degrees F refractive index: n20/D 1.509 (lit.)

Storage conditions: 2-8 unitary C