Role of Insect Sex Pheromone in Mating Behavior. : II. An Aspect of Sex Pheromone as a Volatile Material

Abstract
The saturated vapor pressures of 3 compounds identified as a sex pheromone of Lepidoptera and related compounds are measured by the gas-saturated method. The values of satured vapor pressure of these materials are 10-4-10-1 mmHg at 30.degree. C. Vapor-liquid equilibrium of these pheromonal compounds is discussed in regard to these values for vapor pressure and mole fraction (or weight %).