Synonyms: 4-Cyclohexene-1,2-dicarboxylicanhydride, 3-methyl- (6CI,8CI);1,2,3,6-Tetrahydro-3-methylphthalic anhydride;3-Methyl-1,2,3,6-tetrahydrophthalic anhydride;3-Methyl-4-cyclohexene-1,2-dicarboxylic acid anhydride;3-Methyl-4-cyclohexene-1,2-dicarboxylic anhydride;3-Methyl-D4-tetrahydrophthalic anhydride;3-Methyltetrahydrophthalic anhydride;I-MTHFA;NSC 2352;