Synonyms: | 3-Cyclobutene-1,2-dicarboxylicanhydride (7CI,8CI); 1-Cyclobutene-3,4-dicarboxylic anhydride;1-Cyclobutene-cis-3,4-dicarboxylic anhydride;3-Cyclobutene-cis-1,2-dicarboxylic anhydride; Cyclobut-3-ene-1,2-dicarboxylicacid anhydride; cis-3,4-Cyclobutenedicarboxylic anhydride |