Source:http://linkedlifedata.com/resource/umls/id/C1156511
GO: The chemical reactions and pathways resulting in the formation of any of a group of physiologically important biogenic amines that possess a catechol (3,4-dihydroxyphenyl) nucleus and are derivatives of 3,4-dihydroxyphenylethylamine. [GOC:jl, ISBN:0198506732]