151677-70-2 2,3-Butadione 2,3-Butanedione 2,3-Diketobutane 2,3-Dioxobutane 4-01-00-03644 (Beilstein Handbook Reference) 431-03-8 AI3-03313 BRN 0605398 Biacetyl Butadione Butanedione Butanedione [UN2346] [Flammable liquid] CCRIS 827 DIACETYL Diacetyl (natural) Dimethyl diketone Dimethyl glyoxal Dimethylglyoxal EINECS 207-069-8 FEMA No. 2370 Glyoxal, dimethyl- HSDB 297 NSC 8750 UN2346