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

Squaric Acid Dimethyl Ester;

Dimethyl Squarate;

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

3,4-DiMethoxy-3-cyclobutene-1,2-dione;

CAS No. 5222-73-1

Molecular formula: C6H6O4

Molecular weight: 142.10900