Adrenaline. See

Adonitol (Ribitol) [488-81-3] M 152.2, m 102 . Crystallise from EtOH by addition of diethyl ether. Adrenalin see epinephrine. 

Adenine, 423 Adenyl cyclase, 62 Adiphenine, 91 Adrenal gland extracts, 188 Adrenaline, see epinephrine a-Adrenergic blocking action, 242... 

Catecholamines alkylamino derivatives of pyro-catechol (o-dihydroxybenzene) a group of substances biosynthesized from L-tyrosine, and including the hormones Adrenalin (see), Noradrenalin (see) and Dopamine (see). 

N. is deactivated by O-methylation a monoamine oxidase then removes the NHj group to produce 3-methoxy-4-hydroxymandelic acid (vanillylmandelic parasympathetic nervous function, and is used for the diagnosis of tumors which produce N. or adrenalin. See ascorbate shuttle. 

The opposite in fact Dopamine is a neurotransmitter found in the brain of all animals, and is closely related to adrenaline (see p9). In fact, it is the precursor to noradrenaline, which in turn is used to synthesize adrenaline in the body. 

---