Diglycidyl tetrahydrophthalate21544-03-636 % similar 3-Oxabicyclo[3.2.0]hept-6-ene-2,4-dione10374-07-934 % similar Isobutyric anhydride97-72-334 % similar Norcantharidin29745-04-834 % similar Norcantharidin5442-12-634 % similar Tetrahydro-1H-5,9-methanopyrano(3,4-d)oxepine-1,3,6,8(4H)-tetrone6053-46-934 % similar Methylnadic anhydride25134-21-834 % similar 3a,4,5,7a-Tetrahydro-6-methyl-1,3-isobenzofurandione19438-64-333 % similar Dicyclohexyl-3,4,3',4'-tetracarboxylic dianhydride122640-83-932 % similar (+/-)-cis-Bicyclo[3.2.0]hept-2-en-6-one13173-09-632 % similar Methyl 3-cyclopentenecarboxylate58101-60-332 % similar 1,2,3,4-Butanetetracarboxylic dianhydride4534-73-031 % similar Lactic anhydride97-73-431 % similar Ethyl cyclopent-3-enecarboxylate21622-01-531 % similar Dimethyl 5-norbornene-2,3-dicarboxylate5826-73-331 % similar