(2R,3S)-3-[(3E)-4,8-Dimethyl-3,7-nonadien-1-yl]-3-methyl-2-oxiranecarboxylic Acid is an intermediate in the synthesis of JHSB3 (J211030). JHSB3 is an acyclic sesquiterpenoid that regulates many aspects of insect physiology. Juvenile Hormone regulate development, reproduction, diapause, and polyphenisms.