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 gases in the petrochemical industry
• Methylenedioxyethylamphetamine (3,4-methylenedioxy-N-ethylamphetamine), C₁₂H₁₇NO₂, an analog of MDMA