> There are several 'resolvers' out there for InChi Keys.
> https://cactus.nci.nih.gov/blog/?tag=inchikey-resolver
> http://chembl.blogspot.com/2016/03/this-python-inchi-key-resolver-will.html
>
> As noted, these will only work for molecules in PubChem (the NIH resolver)
> and UniChem (the Chembl
> PS: there is an unpractical way though: compute the inchikey of all possible
>molecules, until you hit the key that you were looking for.
There are several 'resolvers' out there for InChi Keys.
https://cactus.nci.nih.gov/blog/?tag=inchikey-resolver