(organic chemistry) A colourless hygroscopic liquid, an analogue of diethylene glycol.

plural of diethanolamine

plural of diethylenetriamine

plural of diethylamine

(pharmacology) A synthetic estrogen drug C₁₈H₂₀O₂ used formerly to prevent miscarriage or premature delivery in humans and to promote growth in livestock. The medical use of diethystilbestrol was discontinued in the U.S. during the early 1970s due to its association with serious side effects (such as reproductive tract abnormalities and increased rates of infertility) in offspring exposed to the drug while developing in the uterus. It is no longer commercially available in the U.S. and its use is currently limited to specially compounded formulations for veterinary care.

(organic chemistry) The diethyl derivative of the dithiocarbamate anion

(organic chemistry) The diethyl ester of pyrocarbonic acid; it is used in biochemistry to inactivate ribonucleases

(organic chemistry) The nitrosamine (CH₃-CH₂)₂N-N=O, which is both carcinogenic and mutagenic.

The drug diethylcathinone.

A stimulant prodrug of ethcathinone, used as an appetite suppressant.