... will meet your requirements.we have our own factory. CAS Number:56-25-7Name:4,7-Epoxyisobenzofuran-1,3-dione, ... dimethyl- (8CI); Cantharidin (6CI,7CI);1,2-Dimethyl-3,6-epoxyperhydrophthalic anhydride; Cantharides camphor;Cantharidine; Cantharone; Hexahydro-3a,7a- ... Kantaridin; NSC 61805; exo-1,2-cis-Dimethyl-3,6-epoxyhexahydrophthalicanhydride Molecular Formula:C10H12 O4 Molecular Weight:196.22 ...