Part of taste in humans is genetically controlled and it is a well-known phenomena to find individuals who are unable to taste phenylthiocarbamide. |
For decades, taste researchers have used a chemical called phenylthiocarbamide to assay a person's capability to sense a bitter taste. |
The ability to taste, tested using a compound phenylthiocarbamide, is one of the best studied inherited traits in humans. |
In any case, I couldn't find any online, so I sent away for a strip flavored with phenylthiocarbamide, one of PROP's chemical cousins. |