... will meet your requirements.we have our own factory. CAS Number:56-25-7Name:4,7-Epoxyisobenzofuran-1,3-dione,hexahydro ... ,7a-dimethyl-, (3aa,4b,7b,7aa)-;7-Oxabicyclo[2.2.1]heptane-2,3-dicarboxylicanhydride, 2,3-dimethyl- (8CI); Cantharidin (6CI,7CI);1 ... -epoxyisobenzofuran-1,3-dione;Kantaridin; NSC 61805; exo-1,2-cis-Dimethyl-3,6-epoxyhexahydrophthalicanhydride Molecular Formula:C10H12 O4 Molecular ...