Z-9 Tricosene, known as muscalure, is an insect pheromone found in dipteran flies such as the housefly. Females produce it to attract males to mate. It is used as a pesticide, luring males to traps to prevent them from reproducing.



  • As a pesticide, (Z)-9-tricosene is used in fly paper and other traps to lure male flies, trap them, and prevent them from reproducing.


  • (Z)-9-Tricosene is biosynthesized in house flies from nervonic acid. The acid is converted into the acyl-CoA derivative and then reduced to the aldehyde (Z)-15-tetracosenal. Through a decarboxylation reaction, the aldehyde is converted to (Z)-9-tricosene. The process is mediated by a cytochrome P450 enzyme and requires oxygen (O2) and nicotinamide adenine dinucleotide phosphate (NADPH).


  • Products containing (Z)-9-tricosene are considered safe for humans, wildlife, and the environment.


  • Unknown, please consult your nutritionist.

Other names

  • muscalure


Source: Wikipedia, https://en.wikipedia.org/wiki/(Z)-9-Tricosene

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