You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
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Come up with a molecule based on the description: The molecule is a fumigant and mustard, impacting both seizure and cardiac arrest. The molecule is a nutrient and a air pollutant, it impacts vomiting, and is horseradish. The molecule is a food and nutrition that impacts coma, breathing difficulties, and vertigo. It impacts confusion, apnea, chest pain, and pain, and the molecule is pungent.
user