Bilirubin
Bilirubin IXalpha is a member of the class of biladienes that is a linear tetrapyrrole with the dipyrrole units being of both exovinyl and endovinyl type. A product of heme degradation, it is produced in the reticuloendothelial system by the reduction of biliverdin and transported to the liver as a complex with serum albumin. It has a role as an antioxidant, a mouse metabolite and a human metabolite. It is a dicarboxylic acid and a member of biladienes. It contains a 24G7 epitope. It is a conjugate acid of a bilirubin(2-). — ChEBI
- IUPAC name
- 3-[2-[[3-(2-carboxyethyl)-5-[(Z)-(3-ethenyl-4-methyl-5-oxopyrrol-2-ylidene)methyl]-4-methyl-1H-pyrrol-2-yl]methyl]-5-[(Z)-(4-ethenyl-3-methyl-5-oxopyrrol-2-ylidene)methyl]-4-methyl-1H-pyrrol-3-yl]propanoic acid
- Molecular formula
- C33H36N4O6
- Molecular weight
- 584.7 g/mol
- Exact mass
- 584.26348488 Da
- XLogP3
- 2.9
- Topological polar surface area
- 164.0 Ų
- Hydrogen-bond donors
- 6
- Hydrogen-bond acceptors
- 6
- Covalent units
- 1
- Defined stereocentres
- 0
Also known as
16 more reported names
External database identifiers
- ChEBI:CHEBI:16990
- ChEMBL:CHEMBL501680
- EPA DTXSID:DTXSID8060905
- PubMed:38342443
- PubMed:37054934
- PubMed:34619301
- PubMed:34461081
- PubMed:33788065
- PubMed:32033040
- PubMed:30026087
- PubMed:29968805
- PubMed:29079291
- PubMed:28805483
- PubMed:27578021
- PubMed:27394961
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.