Medical Dictionary
porphobilinogen
noun por·pho·bi·lin·o·gen \ˌpȯr-fō-bī-ˈlin-ə-jən\
Medical Definition of PORPHOBILINOGEN
: a dicarboxylic acid C10H14N2O4 that is derived from pyrrole, that is found in the urine in acute porphyria, and that on condensation of four molecules yields uroporphyrin and other porphyrins
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