#monoamine  a molecule containing one amine group (especially one that is a neurotransmitter)
  supertype:  #amine__aminoalkane  a compound derived from ammonia by replacing hydrogen atoms by univalent hydrocarbon radicals
  subtype:  #monoamine_neurotransmitter__monoamineneurotransmitter  a monoamine that is functionally important in neural transmission
     subtype:  #noradrenaline  a catecholamine precursor of epinephrine that is secreted by the adrenal medulla and also released at synapses
     subtype:  #serotonin__5-hydroxytryptamine__5hydroxytryptamine  a neurotransmitter involved in e.g. sleep and depression and memory
     subtype:  #dopamine__Dopastat__Intropin  a monoamine neurotransmitter found in the brain and essential for the normal functioning of the central nervous system; as a drug (trade names Dopastat and Intropin) it is used to treat shock and hypotension

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