1-Buten-3-one 2-Butenone 3-Buten-2-one 3-Butene-2-one 3-Butenone-2 78-94-4 AI3-16048 Acetone, methylene- Acetyl ethylene Butenone CCRIS 3423 EINECS 201-160-6 HSDB 716 Ketone, methyl vinyl METHYL VINYL KETONE Methyl ethenyl ketone Methyl vinyl ketone, stabilized [UN1251] [Poison] Methyl-vinyl-cetone [French] Methylene acetone Methylvinyl ketone Methylvinylketon [German] Methylvinylketone NSC 4853 UN1251 Vinyl methyl ketone delta(sup 3)-2-Butenone gamma-Oxo-alpha-butylene