2,3-Butadione 2,3-Butanedione (8CI,9CI) 2,3-Diketobutane 2,3-Dioxobutane 2,3-butanedione 431-03-8 AI3-03313 Butadione Butanedione Butanedione [UN2346] [Flammable liquid] CCRIS 827 Diacetyl Diacetyl (natural) Dimethyl diketone Dimethyl glyoxal Dimethylglyoxal FEMA No. 2370 Glyoxal, dimethyl- HSDB 297 UN2346