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苯硫脲(Phenylthiocarbamide,PTC)是带有苦味的白色针状结晶(C_6H_5·NH·CS·NH_2)。1981年Fox首先发现人们尝出这种苦味的能力是不同的,并提出苦味主要由分子中的
Phenylthiocarbamide (PTC) is a bitter white needle crystal (C 6 H 5 · NH · CS · NH 2). In 1981, Fox first discovered that people were different in their ability to taste this bitter taste and proposed that bitterness mainly consists of