[{"from": "human", "value": "Please give me some details about this molecule. [C][C][Branch1][N][C][C][C][C][Branch1][C][C][Branch1][C][C][O][C][C][=O]"}, {"from": "gpt", "value": "The molecule is a synthetic fragrance that is widely used in many cosmetics and hygiene products such as deodorants, soaps, antiseptics, and other household items. It has the smell of lilac, lily, and lily of the valley. Hydroxycitronellal has also been shown to be a dermatologic irritant and allergen, and as a result commercially available products are restricted by the International Fragrance Association (IFRA) to contain only 0.1-3.6%.  Sensitivity to hydroxycitronellal may be identified with a clinical patch test."}]