磺酸基
磺酸基(sulfonyl hydroxide)指硫酸(H2SO4)式中失去一个羟基(-OH)后剩余的部分,简称磺基,化学式为-SO3H。它是一种官能团,磺基与烃基的碳原子直接相连时形成磺酸(RSO3H)类有机物如苯磺酸(C6H5SO3H)。
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