1-Methyl-1-benzylidene-acetone 1901-26-4 2-07-00-00298 (Beilstein Handbook Reference) 3-Benzylidene-2-butenone 3-Buten-2-one, 3-methyl-4-phenyl- 3-METHYL-4-PHENYL-3-BUTEN-2-ONE 4-Phenyl-3-methyl-3-buten-2-one BRN 0774487 Benzylidene methyl ethyl ketone EINECS 217-599-1 FEMA No. 2734 Methyl alpha-methylstyryl ketone Methylbenzylideneacetone NSC 46888 alpha-Methyl-alpha-benzalacetone