acetylcholine
n.
a neurotransmitter released by the transmitting dendron at autononmous synapses and at neuromuscular junctions. It is a quaternary amine with an obligatory negative counterion. The nominal formula for the hydroxide form is C7H17NO3 . Structural formula (CH3)3N(+)CH2CH2.O.CO.CH3.OH(-) .
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