3,4-diethoxycyclobut-3-ene-1,2-dione;3,4-diethoxycyclobut-3-ene-1,2-quinone;5231-87-8;Diethyl squarate;FR-2176;31630_FLUKA;SBB008498;ZINC02140852;3,4-Diethoxy-3-cyclobutene-1,2-dione;3-Cyclobutene-1,2-dione, 3,4-diethoxy-;Diethoxycyclobutenedione;Squaric acid diethyl ester;310778_ALDRICH
3,4-diethoxycyclobut-3-ene-1,2-dione