Is there a website that has ld-50s of various substances?

Question

I've been looking into the ld-50s of various things, and its hard to compare if I cannot find the ld-50. Any help would be appreciated

Answer 1

A list of LD-50's would be like a list of every chemical known to man, which would be prohibitively long.

Wikipedia has a small list of samples, and you can find most chemicals simply by googling "LD-50" "[name chemical]".  

Answer 2

Google the chemical name plus "msds".

That is the material safety data sheet. They sometimes have LD50's in them.