Amyl nitrate is the chemical compound with the formula CH3(CH2)4ONO2.

This molecule consists of the 5-carbon amyl group attached to a nitrate functional group.

[1] It is the ester of amyl alcohol and nitric acid.

Alkyl nitrates are employed as reagents in organic synthesis.

[2] Amyl nitrate is used as an additive in diesel fuel, where it acts as an "ignition improver" (cetane improver) by accelerating the ignition of fuel.