123-54-6 2,4-Dioxopentane 2,4-Pentadione 2,4-Pentanedione 2-Propanone, acetyl- 4-01-00-03662 (Beilstein Handbook Reference) 81235-32-7 ACAC ACETYL ACETONE AI3-02266 Acetoacetone Acetone, acetyl- Acetyl 2-propanone Acetylacetone BRN 0741937 CCRIS 3466 Diacetylmethane EINECS 204-634-0 HSDB 2064 NSC 5575 Pentan-2,4-dione Pentane-2,4-dione [UN2310] [Flammable liquid] Pentanedione Pentanedione-2,4 UN2310