2-(4-Isobutylphenyl)propionohydroxamsaeure 53648-05-8 73826-33-2 Benzeneacetamide, N-hydroxy-alpha-methyl-4-(2-methylpropyl)- Deflogon EINECS 258-683-8 G 277 G-277 Ibudros Ibuproxam Ibuproxam [INN] Ibuproxamum [INN-Latin] N-Hydroxy-2-(4-isobutylphenyl)propionamid NSC 305528 p-Isobutylhydratropohydroxamic acid