Nerol-d 6 is deuterated labeled Oct-1-en-3-ol. Oct-1-en-3-ol , a fatty acid fragrant, is a self-stimulating oxylipin messenger. Oct-1-en-3-ol serves as a signaling molecule in plant cellular responses, plant-herbivore interactions, and plant-plant interactions. Oct-1-en-3-ol causes dopamine neuron degeneration through disruption of dopamine handling.