N,N-Dimethylethanolamine bitartrate or deanol bitartrate is an organic compound with the chemical formula [HN(CH3)2CH2CH2OH]+HOOC−CH(OH)−CH(OH)−COO−.

N,N-Dimethylethanolamine bitartrate contains tertiary ammonium cations (dimethyl(2-hydroxyethyl)ammonium [HN(CH3)2CH2CH2OH]+) and bitartrate anions (HOOC−CH(OH)−CH(OH)−COO−).

Tertiary ammonium cation is a cation in which three hydrogen atoms of ammonium are replaced with organyl groups.

The bitartrate anion is chiral (there are left, right and meso forms of bitartrate, see tartaric acid).

N,N-Dimethylethanolamine bitartrate is used in biological studies to evaluate motor activity in response to the injection of N,N-dimethylethanolamine.