Structure search is the main feature of Youlab.Me that helps to develop chemical databases. Search results are structures from both users' databases and from Youlab.Me reference database, which is a fact database mined automatically from public sources.
Search is accessible from index page, and also from Search tab of the top menu.
After clicking structure icon, a window with chemical structure editor shows up. There are a few different structure editors. Search can be limited to only compounds available for sale. There is exact search and search by substructure. A search can be limited to one catalog only.