(3aRS,7aSR)-5-methyl-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione, cis-4-methyl-1,2,3,4-tetrahydrophthalic anhydride, Maleic anhydride and isoprene adduct, cis-4-methyl-1,2,3,6-tetrahydrophtalic anhydride, 4-methyl-cis-1,2,3,6-tetrahydrophthalic anhydride, cis-1,2,3,6-Tetrahydro-4-methylphthalic anhydride, EINECS 216-906-6, (+-)-4-Methyl-cyclohex-4-en-1r,2c-dicarbonsaeure-anhydrid, (+-)-4-methyl-cyclohex-4-ene-1r,2c-dicarboxylic acid-anhydride, 3a,5,7a-trimethyl-3a,4,7,7a-tetrahydro-isobenzofuran-1,3-dione, 1,3-Isobenzofurandione,3a,4,7,7a-tetrahydro-5-methyl-,(3aR,7aS)-rel