sigmaaldrich
![6,6′-[(3,3′-二叔丁基-5,5′-二甲氧基-1,1′-二苯基-2,2′-二基)双(氧)]双(二苯并[d,f][1,3,2]二噁磷杂庚英)](https://resources.chemdig.com/resources/cas/121627-17-6.gif)
5G
100ML
