Difluoroacetic anhydride401-67-243 % similar Isobutyric anhydride97-72-343 % similar Norcantharidin29745-04-842 % similar Norcantharidin5442-12-642 % similar Isomethyltetrahydrophthalic anhydride3425-89-641 % similar Bicyclo(2.2.2)oct-5-ene-2,3-dicarboxylic Anhydride6708-37-840 % 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-tetrone1719-83-139 % similar 3a,4,5,7a-Tetrahydro-6-methyl-1,3-isobenzofurandione19438-64-339 % similar 3-Methyltetrahydrophthalic anhydride5333-84-639 % similar Rel-(1R,2R,3S,4S)-1,2,3,4-Cyclopentanetetracarboxylic acid3786-91-238 % similar (1R,5S)-6,6-Dimethyl-3-oxabicyclo(3.1.0)hexane-2,4-dione67911-21-138 % similar Lactic anhydride97-73-438 % similar Methyl (2R)-2-oxiranecarboxylate111058-32-336 % similar exo-5,6-Dehydronorcantharidin6118-51-036 % similar 1,3-Dimethyl 1,3-cyclopentanedicarboxylate2435-36-135 % similar (+)-Diacetyl-L-tartaric anhydride6283-74-535 % similar D-Diacetyltartaric anhydride70728-23-335 % similar Diglycidyl hexahydrophthalate5493-45-834 % similar Diglycidyl tetrahydrophthalate21544-03-633 % similar 1,3-Dimethyl 2-(2-methylpropyl)propanedioate39520-24-633 % similar