Chemical Name: Cyclobuta[1,2-c:3,4-c']difuran-1,3,4,6-tetrone,tetrahydro-3a,6a-dimethyl-CAS No.: 137820-87-2 Molecular Fomula: C10H8O6 Molecular weight: 224.17 Appearance: Off-white to white powder Assay:≥99.5.0%