There are federal agencies that are supposed to monitor thse things, but in some countries these institutions are broken. IMHO Europe does the best job of regulating toxic substances. Even in other jurisdictions, there are manufacturers guides that are often not read or adhered to.
I think this info is mostly out there and is able to be found.
Yes, I agree that a comprehensive global index would be a great thing - so start with checking there (I forget where their index is!)
And don't forget, alcohol, tobacco, driving and sugar are by far the biggest killers in our modern societies!
Besides, chemists themselves have varying ideas of personal safety, depending on what they work with and how flammable/explosive/toxic/all of the above it is. The only real solution, unfortunately, is for the regulatory authorities to make and publish clear evidence based decisions.