But the greatest example of thioacetone's silent-but-deadly strength comes from the German city of Freiburg where in 1889, chemists at a soap factory were, reportedly, working on a larger molecule known as tri-thioacetone, which is used as a flavoring and a fragrance.

关于丙硫酮沉默却要命的力量，最佳例子来自德国弗莱堡市，那是1889年，据记载一家肥皂厂的化学人员正研究一种叫做“三聚硫酮”的大分子，以作为调料和香味剂。