MDEA

MDEA may refer to:


 * Methyl diethanolamine (N-methyl-diethanolamine), CH3N(C2H4OH)2, a chemical used for amine gas treating, also known as gas sweetening or acid gas removal, the removal of hydrogen sulfide and carbon dioxide from gasses in the petrochemical industry
 * Methylenedioxyethylamphetamine (3,4-methylenedioxy-N-ethylamphetamine), C12H17NO2, an analog of the drug MDMA