Formulation: A solution in hexane
Formal Name: 7Z,11Z-pentacosadiene
Purity: ≥98%
Formula Markup: C25H48
Formula Weight: 348,7
Shelf life (days): 365
CAS Number: 127599-39-7
Notes: Unsaturated, long-chain hydrocarbons are found on the cuticles of insects and can act as pheromones. In mature Drosophila melanogaster, certain cuticular hydrocarbons are sexually dimorphic: males synthesize 23- and 25-C monoenes and females produce 27- and 29-C dienes. Each of these lipids plays specific roles in regulating male sexual behavior, with dienes stimulating courtship.{16828} 7(Z),11(Z)-Pentacosadiene is a 25-C hydrocarbon that is found in low abundance on cuticles of mature Drosophila females.{17569} Depletion of a female-specific elongase (eloF), which leads to an increase in 7(Z),11(Z)-pentacosadiene along with a parallel decrease in 7,11-nonacosadiene, significantly reduces copulation in Drosophila.{16827} This raises the possibility that 7(Z),11(Z)-pentacosadiene may act as an anti-aphrodisiac.
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