The main problem of the chemical database is that they are slow. When you start to think abouting using a chemical database, you usually start to think at the same time about pouring yourself a new cup of coffee or tee.
When developing Cheméo, the rule was simple: it must be fast, very fast. The end result can be seen on the graph, Google takes on average of 62ms to download a page. This is faster than 99% of the websites. To achieve this, I even wrote assembly language to have the fastest similarity search with custom merge and sort algorithms to bring the results together.
So, if you need a fast access to a chemical database, just try Cheméo!