Accession NumberHMDB01898
Common_NameMesobilirubinogen
DescriptionUrobilinogen is an uribiniloid, the product of bilirubin reduction in multiple sequential reactions. Urobilinogens are colorless chromogens that may in turn be oxidized to respective yellow oxidation products, urobilins. Under normal conditions only small amounts of bilirubin can be found in stools of adults while urobilinoids are predominant bile pigments (50-250 mg/day). Only negligible amounts of fecal urobilinoids are present in the intestinal lumen of infants during the first months of their life, due to undeveloped intestinal microflora capable of reducing bilirubin. This presumably contributes importantly to the pathogenesis of neonatal jaundice. In adults, the urobilinoid production is highly efficient. At times, it is re-excreted in the urine, where it may be later oxidized to urobilin. (PMID: 16504607)
Chemical_IUPAC_Name3-[2-[[3-(2-carboxyethyl)-5-[(3-ethyl-4-methyl-5-oxo-1,2-dihydropyrrol-2-yl)methyl]-4-methyl-1H-pyrrol-2-yl]methyl]-5-[(4-ethyl-3-methyl-5-oxo-1,2-dihydropyrrol-2-yl)methyl]-4-methyl-1H-pyrrol-3-yl]propanoic acid
Chemical FormulaC33H44N4O6
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