3-Methyltetrahydrophthalic anhydride5333-84-6100 % similar 1,2,3,6-Tetrahydrophthalic anhydride85-43-853 % similar Tetrahydrophthalic anhydride935-79-553 % similar Tetrahydro-1H-cyclopenta[1,2-c:3,4-c′]difuran-1,3,4,6(3aH)-tetrone6053-68-544 % similar Carbic anhydride129-64-641 % similar Himic anhydride2746-19-241 % similar Bicyclo(2.2.2)oct-5-ene-2,3-dicarboxylic Anhydride6708-37-841 % similar Nadic anhydride826-62-041 % similar 3a,4,4a,7a,8,8a-Hexahydro-4,8-etheno-1H,3H-benzo[1,2-c:4,5-c′]difuran-1,3,5,7-tetrone1719-83-141 % similar 3-Oxabicyclo[3.2.0]heptane-2,4-dione4462-96-839 % similar 3-Oxabicyclo(3.1.0)hexane-2,4-dione5617-74-339 % similar Isomethyltetrahydrophthalic anhydride3425-89-638 % similar exo-5,6-Dehydronorcantharidin6118-51-038 % similar Tetrahydrocyclobuta[1,2-c:3,4-c′]difuran-1,3,4,6-tetrone4415-87-638 % similar Rikacid MH19438-60-937 % similar cis-1,2-Cyclohexanedicarboxylic anhydride13149-00-336 % similar (-)-trans-1,2-Cyclohexanedicarboxylic anhydride31982-85-136 % similar Rel-(3aR,6aS)-Tetrahydro-1H-cyclopenta[c]furan-1,3(3aH)-dione35878-28-536 % similar trans-Cyclohexane-1,2-dicarboxylic anhydride71749-03-636 % similar Hexahydrophthalic anhydride85-42-736 % similar