CAS: 89-32-7 Molecular Formula: C10H2O6 Molecular Weight (g/mol): 218.12 MDL Number: MFCD00005005 InChI Key: ANSXAPJVJOKRDJ-UHFFFAOYSA-N Synonym: pyromellitic dianhydride,pyromellitic anhydride,pyromellitic acid anhydride,1,2,4,5-benzenetetracarboxylic anhydride,pyromellitic acid dianhydride,1h,3h-benzo 1,2-c:4,5-c' difuran-1,3,5,7-tetrone,pmda,benzo 1,2-c:4,5-c' difuran-1,3,5,7-tetraone,unii-2z22t30qzq,1,2,4,5-benzenetetracarboxylic dianhydride PubChem CID: 6966 IUPAC Name: 5,11-dioxatricyclo[7.3.0.0³,⁷]dodeca-1,3(7),8-triene-4,6,10,12-tetrone SMILES: O=C1OC(=O)C2=CC3=C(C=C12)C(=O)OC3=O