More benign alternatives exist, such as the deep eutectic solvents (DES) developed by researchers at Rice University in Houston, Texas, which are biodegradable and non-toxic.

还存在害替代品， 例如德克萨斯州斯顿莱斯大学研究人员开共晶溶剂 (DES)，它可生物降解且毒。