[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a commonly used fragrance added to many commercially available products, and occurs naturally in the essential oils of plants such as ylang-ylang. It is also a significant dermatologic sensitizer and allergen, and as a result has been restricted to 200 p.p.m. since 1998 according to guidelines issued by the fragrance industry. Allergic reactivity to Isoeugenol may be identified with a patch test."}, {"from": "gpt", "value": "[C][/C][=C][/C][=C][C][=Branch1][=Branch2][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][O][C]"}]