Used for the synthesis of optically active forms of Ipsenol, the pheromone of Ips bark beetles.Synonyms:(2S)-2-Hydroxy-4-methylpentanoic Acid Ethyl Ester; Ethyl (S)-2-Hydroxyisocaproate; Ethyl L-Leucate;CAS Number:60856-85-1Molecular Formula.:C₈H₁₆O₃Molecular Weight:160.21