What is the name of the chemical that some people can taste and others cannot?

I think it's a popular junior-high school science experiment. I remember it, along with the "who-can-roll-their-tongue" experiment, but can't remember what it is called.

What is the name of the chemical that some people can taste and others cannot?
Phenylthiocarbamide (PTC).





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http://faculty.washington.edu/chudler/bi...











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Reply:i dont know...do you?
Reply:I didn't know there was a chemical that did that. Wow, learn something new everyday. Thanks for asking the question.
Reply:Thiourea is another commonly used chemical. It generally eleicits the same type of response as PTC, however some people will taste one and not the other.
Reply:Phenylthiocarbamide, it tasts very bitter, if you cant tast it thank god
Reply:Amonia i think
Reply:Phenylthiocarbamide