porphobilinogen
McGraw-Hill Science & Technology Dictionary:
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porphobilinogen
(¦pör·fō·bə′lin·ə·jən)
(biochemistry) C10H14O4N2 Dicarboxylic acid derived from pyrrole; a product of hemoglobin breakdown that gives the urine a Burgundy-red color.
American Heritage Stedman's Medical Dictionary:
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por·pho·bi·lin·o·gen
(pôr'fō-bī-lĭn'ə-jən, -jĕn')
n. (Abbr. PBG)
n. (Abbr. PBG)
A porphyrin precursor found in large quantities in the urine in cases of acute or congenital porphyria.
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