粘康酸

粘康酸（，也称为己二烯二酸）是分子式为C6H6O4的化合物，带有两个碳碳双键，再由于分子的对称性，所以有三种顺反异构体：
{| class="toccolours" border="0" style="left"
| align ="center" | 150px|alt= Skeletal formula of trans,trans-muconic acid
| align ="center"| 130px|alt= Skeletal formula of cis,trans-muconic acid
| align ="center"|130px|alt= Skeletal formula of cis,cis-muconic acid
|-
| align ="center" | 150px|alt= Ball-and-stick model of the trans,trans-muconic acid molecule
| align ="center"| 130px|alt= Ball-and-stick model of the cis,trans-muconic acid molecule
| align ="center"|130px|alt= Ball-and-stick model of the cis,cis-muconic acid molecule
|-
| align ="center"|反式,反式
| align ="center"|顺式,反式
| align ="center"|顺式,顺式
|-
|}

反式,反式-粘康酸是苯在人体中的代謝產物，因此尿液中检测出反式,反式-粘康酸可作为芳香烃暴露的生物标记。工业上，反式,反式-粘康酸可由己二酸合成。

 參考資料 

Category:二羧酸