You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Give me a molecule that satisfies the conditions outlined in the description: The molecule is a nutrient with a Pungent, irritating odor. When heated to decomposition it emits highly toxic sulfur oxides. The molecule has Taste like that of cooked onions.
user
C=CCSSCCC
assistant