Stegobiol, a new sex pheromone component of drugstore beetle (Stegobium paniceum L.).

New sex pheromone component of femaleStegobium paniceum L. was isolated and identified as 2,3-dihydro-2,3,5-trimethyI-6-(1'-methyl-2'-hydroxybutyl)-4H-pyran-4-one, stegobiol, by spectral data and chemical conversion from stegobinone. Relative configuration at C-2, C-3, and C-1' was determined as 2S,3R,1'S by the conversion from (2S,3R,1'R)-stegobinone. This new sex pheromone elicits the pheromonal response from the species.