Full Idea
There are well over 100,000,000 chemical compounds that have been discovered or synthesised, all of which have been formally characterised.
Gist of Idea
Over 100,000,000 compounds have been discovered or synthesised
Source
Weisberg/Needham/Hendry (Philosophy of Chemistry [2011], 4.3)
Book Reference
'Stanford Online Encyclopaedia of Philosophy', ed/tr. Stanford University [plato.stanford.edu], p.25