Chinese company had identified the additive as glycerin, a safe sweetener and thickener. But it was really diethylene glycol, a low-cost substitute commonly used in automobile antifreeze.

• 一家中国公司确认这种添加剂为丙三醇，一种安全的代糖和增稠剂。但他确实是二乙烯基乙二醇，一种常用作汽车抗凝剂的廉价物质。