glycoluril

例句：

1. 1. This product contains glycerol as a key ingredient.
   该产品含有甘油作为关键成分。
2. 2. Glycerol is often used in cosmetics to moisturize and soften the skin.
   甘油常用于化妆品中，用于保湿和软化皮肤。
3. 3. The process of converting vegetable oil into glycerol is known as transesterification.
   将植物油转化为甘油的过程称为酯化反应。