.gamma.-Acetylpropyl acetate 2-Pentanone, 5-(acetyloxy)- 2-Pentanone, 5-hydroxy-, acetate 3-Acetylpropyl acetate 4-Ketovaleryl acetate 4-Oxopentyl acetate 5-Acetoxypentan-2-one 5185-97-7 Acetopropyl acetate NSC1093