After more than 4 successful years and over 300 million queries to our web services, SIRIUS 4 will reach its end of life on 31th of December 2022.
What does this mean for you? We will shut down the web services behind SIRIUS 4, so fingerprint prediction, structure database search and compound class prediction will not be possible with SIRIUS 4 anymore. Switching to SIRIUS 5 will solve the problem for you. As always, if you have a running long term project that exceeds the end of life date and cannot switch to SIRIUS 5 please contact us.