Dyanhydride piromellitik (PMDA) se yon konpoze òganik ki gen fòmil chimik C₁₀H₂O₆ ak nimewo CAS 89-32-7. Sinonim anglè li yo enkli Pyromellitic dianhydride, 1,2,4,5-Benzenetetracarboxylic dianhydride, benzene-1,2:4,5-tetracarboxylic dianhydride, PMDA, ak 1H,3H-benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetron.