52663-84-0 N-(2-Fluorenyl)propionohydroxamic acid N-Hydroxy-N-2-propionylamino fluorene N-Propionyl-N-2-fluorenylhydroxylamine N-Propionyl-N-hydroxy-2-aminofluorene Propanamide, N-9H-fluoren-2-yl-N-hydroxy- Propionohydroxamic acid, N-(2-fluorenyl)-