1,2-Cyclohexanedicarboxylic anhydride, 4-methyl- 1,3-Isobenzofurandione, hexahydro-5-methyl- 15433-45-1 19438-60-9 4-Methyl-1,2-cyclohexanedicarboxylic anhydride 4-Methylcyclohexyl-1,6-dicarboxylic acid anhydride 5-Methyl hexahydro-1,3-isobenzofurandione 5-Methylhexahydrophthalic anhydride EINECS 243-072-0 Hexahydro-4-methylphthalic anhydride NSC 128883