•Whilst for many purposes, e.g. compound registration, inventory etc, the Thor functions of store
and retrieve are sufficient, it is sometimes necessary to ask other chemically-significant questions
–What superstructures of my target do I have?
–What substructures of my target do I have?
–What tautomers of my target do I have?
–What compounds, similar to my target, do I have?
•In addition there are related non-chemical questions like