PMGDM [Bis (glyceryl dimethacrylate) pyromellitate] 36% (w/w) solution in acetone (stabilized). It contains four methacrylate groups and two carboxylic acid groups which can bond with various substrates. Complies with TSCA (Toxic Substances Control Act), EINECS (European Inventory of Existing Commercial Chemical Substances) and Food and Drug Administration's 21 CFR.