Diethylene Glycol (DEG)

Diethylene glycol (DEG) is an organic compound with the formula (HOCH2CH2)2O. It is a colorless, practically odorless, poisonous, and hygroscopic liquid with a sweetish taste. It is miscible in water, alcohol, ether, acetone, and ethylene glycol. DEG is a widely used solvent.

1,5-Dihydroxy-3-oxapentane I 2,2'-dihydroxydiethyl ether I 2,2'-Oxydiethanol
C4H10O3
111-46-6

−10 °C
245 °C
143 °C
1.118 g/mL at 25 °C