英文别名3,4-Dichloro-3-cyclobutene-1,2-dione; Squaric acid dichloride; 3,4-dichlorocyclobut-3-ene-1,2-quinone; 1,2-Dichloro-1-cyclobutene-3,4-dione; Dichlorocyclobutenedione; Quadratic acid dichloride; Squaryl dichloride; 3-Cyclobutene-1,2-dione,3,4-dichloro-; 3,4-Dichlorocyclobutene-1,2-dione 
