Chemical structures are stored in IDdb both as MOL files and as GIFs.
The GIF is simply a picture of the structure, and it can be viewed in a web browser
without any need for a plug-in.
The MOL file is a chemically-meaningful file format. This is the file that is searched
during a structure search. It can also be copied and pasted into other chemical structure
applications. Web browsers cannot ordinarily display MOL files, and therefore the
Chime Pro plug-in is required to view the MOL file.
By default, structures in IDdb display in GIF format. To view a MOL file, click on the
View Molfile link alongside the structure.
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