- 丙二醇 bǐng'èrchún propylene glycolpropylene glycol; a colorless organic compound used in antifreeze and food products like food and medicine
- 乙二醇 yǐ'èrchún ethylene glycolethylene glycol; glycol; ethanediol, a chemical used as antifreeze
- 丁二醇 dīng'èrchún butanediolbutanediol; butyl glycol
- 甲二醇 jiǎ'èrchún methylene glycol