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Tetrahydrothiophene
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<p>Tetrahydrothiophene is an <a href="/facts/Organosulfur_compound/sUxSSXwD">organosulfur compound</a> with the formula (CH2)4S. The molecule consists of a five-membered saturated ring with four <a href="/facts/Methylene_group/sdGv7zMu">methylene</a> groups and a <a href="/facts/Sulfur/IK0amTfM">sulfur</a> atom. It is the <a href="/facts/Saturated_and_unsaturated_compounds/tde2C216">saturated</a> <a href="/facts/Structural_analog/3aysWSVG">analog</a> of <a href="/facts/Thiophene/pQhcmsCK">thiophene</a> and is therefore the sulfur analog of <a href="/facts/Tetrahydrofuran/P5t6SkMK">THF</a>. It is a volatile, colorless liquid with an intensely unpleasant <a href="/facts/Odor/WnCopMmH">odor</a>. It is also known as thiophane, thiolane, or THT. </p>