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3-Mercaptopropionic acid
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<p>3-Mercaptopropionic acid (3-MPA) is an <a href="/facts/Organosulfur_compound/sUxSSXwD">organosulfur compound</a> with the formula HSCH2CH2CO2H. It is a <a href="/facts/Bifunctional/v0uJeNGE">bifunctional</a> molecule, containing both carboxylic acid and thiol groups. It is a colorless oil. It is derived from the addition of hydrogen sulfide to <a href="/facts/Acrylic_acid/x2l3lrI2">acrylic acid</a>. </p>