1,2,3,6-Tetrahydro-N-methylphthalimide 2021-21-8 4-Cyclohexene-1,2-dicarboximide, N-methyl- EINECS 217-965-0 N-Methyl-1,2,3,6-tetrahydrophthalimide N-Methyl-4-cyclohexene-1,2-dicarboximide Phthalimide, 1,2,3,6-tetrahydro-N-methyl-