1,3-Isobenzofurandione, 3a,4,5,7a-tetrahydro-7-methyl-5-(tetrahydro-2,5-dioxo-3-furanyl)- 106946-03-6 127682-40-0 165182-40-1 173979-41-4 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-dicarboxylic anhydride 73003-90-4 83636-44-6 96231-11-7 EINECS 277-212-7