2,5-Hexanedione

[110-13-4] C6H10O2 (MW 114.14) InChI = 1S/C6H10O2/c1-5(7)3-4-6(2)8/h3-4H2,1-2H3 InChIKey = OJVAMHKKJGICOG-UHFFFAOYSA-N (reagent used for the protection of amino groups in amino sugars and nucleosides; for the synthesis of five-membered heterocycles, in particular 2,5-dimethyl aminopyrroles, indane-type and benzannulated systems). Alternate Name: acetonylacetone, diacetonyl, 1,2-diacetylethane, and 2,5-diketohexane. Physical Data: clear to yellow liquid, bp 188–191 °C. Solubility: soluble in most organic solvents. Miscible with water. Analysis of Reagent Purity: 1H NMR,1 IR,2 Mass spectrum (commercially available).3 Purification: distillation through a fractionating column (bp 78–79 °C /15 mm Hg). Handling, Storage, and Precautions: shelf-stable, oral rat LD50: 2076 mg/kg, NFPA ratings: health-1, flammability-2, reactivity-0.