sigmaaldrich
500MG
1G
![双[2-(2-氯化乙氧基)乙基]醚](https://resources.chemdig.com/resources/cas/638-56-2.gif)
![N-[2-(二苯基膦)苯亚甲基]环己胺](https://resources.chemdig.com/resources/cas/321155-13-9.gif)
