You can find more details by looking up phenolphthalein in the "Merck Index".
According to The Merck Index, it is also used as a detoxicant.
For references to them, look in the Merck Index.
You couldn't look it up in the Merck Index or buy it at the pharmacy.
Replies: A quick look to the Merck Index did not reveal any hazards.
In addition the Merck Index is a good general source of the chemical description of pharmacologically active chemicals.
You might try Merck Index, but that too usually only provides single point data at best.
Ricin is described in the Merck Index, the standard reference on chemicals, as "among the most toxic compounds known."
I found these in the Merck Index.
You can find out the details from citations in the Merck Index.