Bilirubin is a principal pigment of bile and one of the major end products of hemoglobin decomposition. It contains conjugated double bonds and reactive hydrogen atoms. Serves as a physiological antioxidant. Reported to cross the blood-brain barrier and exert significant antioxidant effects in the brain. This product corresponds to the unconjugated form. Extinction coefficient (454 nm, CHCl3):59,100-62,300 M-1cm-1.
1. Scigliano, G., et al. 1997. Ital. J. Neurol. Sci. 18: 69-72. PMID: 9239525
2. Ossola, J.O., et al. 1998. Int. J. Biochem. Cell Biol. 30: 285-292. PMID: 9608682
Soluble in chloroform (10 mg/ml), benzene, chlorobenzene, carbon disulfide, alkaline solutions, aqueous acid, ethanol (slightly), and ether (slightly). Insoluble in water.
Store at room temperature
925.16° C at 760 mmHg (Predicted)
1.37 g/cm3 (Predicted)
n20D 1.72 (Predicted)
pKa: 4.62, pKb: 2.31
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
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