Supplementary Building Blocks
![N,N′′-(3,3′-Dimethyl[1,1′-biphenyl]-4,4′-diyl)bis[N′-[4-(diethylamino)-1-methylbutyl]urea]/1838210-61-9](/upload/2023/8\aab1d7e9-3ea2-4a3a-bcaa-0c033736fe8c.png)
Hangzhou Longshine Bio-Tech Co.,Ltd is a professional pharmaceutical
manufacturer with productive factory, which is able to produce API and pharmaceutical intermediate with
reliable quality and good price.
