KEY TAKEAWAYS •
Sulfur acts similarly to oxygen in the creation of many organic molecules.
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The oxidation number of the sulfur atom can be as low as negative two or as high as positive six.
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The thiol molecule, disulfide molecule, sulfide molecule, and sulfoxide molecule are the most common sulfur compounds used in organic chemistry.
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Sulfur is important in protein biochemistry because, with cysteine, it can create a disulfide bridge that helps form the 3D characteristic of a protein molecule.
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