1-Propanone, 1-(4-methoxyphenyl)-2-methyl- 2040-20-2 4'-Methoxy-2-methylpropiophenone Isopropyl 4-methoxyphenyl ketone Isopropyl p-methoxyphenyl ketone NSC142584 Propiophenone, 4'-methoxy-2-methyl- p-Methoxyisobutyrophenone