At the moment, this is in fact 357,266 pure compound properties that are evaluated. You can expect to have them in Cheméo pretty soon. This is really great news and this part of a work to ingest about 1.5 millions pure and mixture property datapoints in the database.
These data are covering around 2000 compounds/substances. The work is complicated by the lack of clear information about each compound, when the data are covering Water, this is pretty easy to figure out which corresponding compound si matching the database. But when we handle tetrabutylammonium dodecyl sulfate you need a bit of manual work to be sure the match is correct.