pyromellitic dianhydride


pyromellitic dianhydride

[‚pī·rō·mə′lid·ik ¦dī·an′hī‚drīd] (organic chemistry) C6H2(C2O3)2 A white powder with a melting point of 286°C; soluble in some organic solvents; used for curing epoxy resins. Abbreviated PMDA.