<p><b>庚酸</b>，又稱<b>葡萄花酸</b>，是七個碳的直鏈羧酸，結構式CH<sub>3</sub>(CH<sub>2</sub>)<sub>5</sub>COOH。
</p>


<h2><span id=".E6.80.A7.E8.B4.A8"></span><span id="性质">性質</span></h2>
<p>無色具腐敗脂肪氣味的透明油狀液體。微溶於水，溶於乙醇和乙醚。
</p>
<h2><span id=".E5.88.B6.E5.A4.87"></span><span id="制备">製備</span></h2>
<p>1-己烯與合成氣經羰基化得到庚醛，後者再經空氣氧化得到庚酸。
</p>
<dl><dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ CH_{3}(CH_{2})_{3}CH\!=\!CH_{2}+CO+H_{2}\rightarrow CH_{3}(CH_{2})_{4}CH_{2}CHO}">
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<dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ CH_{3}(CH_{2})_{4}CH_{2}CHO+{\tfrac {1}{2}}O_{2}\rightarrow CH_{3}(CH_{2})_{4}CH_{2}COOH}">
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  </semantics></math></span></span></dd></dl><h2><span id=".E7.94.A8.E9.80.94"></span><span id="用途">用途</span></h2>
<p>用於生產庚酸酯類，用作香料的製取原料。
</p>
<h2><span id=".E5.8F.82.E8.80.83.E8.B5.84.E6.96.99"></span><span id="参考资料">參考資料</span></h2>

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**庚酸**，又稱**葡萄花酸**，是七個碳的直鏈羧酸，結構式 CH3(CH2)5COOH。

## 性質

無色具腐敗脂肪氣味的透明油狀液體。微溶於水，溶於乙醇和乙醚。

## 製備

1 - 己烯與合成氣經羰基化得到庚醛，後者再經空氣氧化得到庚酸。

　
: $\ CH_{3}(CH_{2})_{3}CH\!=\!CH_{2}+CO+H_{2}\rightarrow CH_{3}(CH_{2})_{4}CH_{2}CHO$

　
: $\ CH_{3}(CH_{2})_{4}CH_{2}CHO+{\tfrac {1}{2}}O_{2}\rightarrow CH_{3}(CH_{2})_{4}CH_{2}COOH$

## 用途

用於生產庚酸酯類，用作香料的製取原料。

## 參考資料
111-14-8