3a,4,5,7a-Tetrahydro-7-methyl-5-(tetrahydro-2,5-dioxofuran-3-yl)isobenzofuran-1,3-dione;5-(2,5-Diketotetrahydrofuryl)-3-methyl-3-cyclohexene-1,2-dicarboxylicanhydride; B 4400; Epiclon B 4400; Epiclon EXP 4400
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