E and Z Pheromone (IMAGE) Max Planck Institute for Chemical Ecology Caption This shows the chemical structure of sex pheromone (E- and Z-11-tetradecenylacetate). Credit MPI Chemical Ecology Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.