Since 1986 I have been in the business of providing access to chemical information by searching the Chemical Abstract Service's CAS Online Database.
So I am an information broker.
Substructure searches: One can have references to all papers referring to chemicals that have Nitrogen bound to Carbon bound to Oxygen, for example.
Registry File searches: Chemicals have assigned to them a numbering system. One can retrieve the Registry Number based on the name. One can retrieve information on the chemical based on the Registry Number.
Keyword searches: Search by word in the title or in the body of a publication.
Author name searches: Search by author.
Patent searches:
Investigations: