Tridecane or n-tridecane is an alkane with the chemical formula CH3(CH2)11CH3.

In industry, they have no specific value aside from being components of various fuels and solvents.

In the research laboratory, tridecane is also used as a distillation chaser.

Nymphs of the southern green shield bug produce tridecane as a dispersion/aggregation pheromone, which possibly serves as a defense against predators.

[2] It is also the main component of the defensive fluid produced by the stink bug Cosmopepla bimaculata.