Synonyms: Malonicacid, diazo-, cyclic isopropylidene ester (6CI,7CI,8CI); 2,2-Propanediol,cyclic diazomalonate (8CI); 5-Diazo-2,2-dimethyl-1,3-dioxane-4,6-dione;5-Diazo-2,2-dimethyl-4,6-dioxo-1,3-dioxane; 5-Diazo-Meldrum's acid;DiazoMeldrum's acid; Meldrum's diazo