1,2,3,6-Tetrahydro-4-methylphthalic anhydride 1,3-Isobenzofurandione, 3a,4,7,7a-tetrahydro-5-methyl- 101466-43-7 110617-56-6 3425-89-6 4-Cyclohexene-1,2-dicarboxylic anhydride, 4-methyl- 4-Methyl-1,2,3,6-tetrahydrophthalic anhydride 4-Methyl-DELTA.4-tetrahydrophthalic anhydride 4-Methyl-delta-4-tetrahydrophthalic anhydride 4-Methyltetrahydrophthalic anhydride EINECS 222-323-8 Isomethyltetrahydrophthalic anhydride NSC 52669