Bilirubin (unconjugated) Synonyms: Unconjugated Bilirubin, Indirect Bilirubin, Indirect Reacting Bilirubin, BU, UCB, UCBR, Hematoidin, Haematoidin, Bilirubina, Bilirubine, Cholerythrin, NSC26685   CAS No.: 635-65-4 Molecular Weight: 584.66 Bilirubin (unconjugated) is a reddish orange powder purified from porcine bile. It is a bile pigment derived from the biological breakdown of heme. Jiagen Biotechnologies supplies quality Porcine Bilirubin of various specifications. To place an order or for more information, please contact us at sales@jiagen.com. References: 1. Schwesinger WH, Kurtin WE 1983: Changes in serum and bile bilirubin induced by acute hemolysis, J Surg Res 35(6): 520-4 2. Sanabria JR, Gordon ER, Harvey PR, Goresky CA, Strasberg SM 1996: Accumulation of uncojugated bilirubin in cholesterol pellets implanted in swine gallbladders, Gastroenterology 110(2): 607-13 3. Schwesinger WH, Kurtin WE 1984: Effects of ethanol infusion on serum hemoglobin and bile pigments, J Surg Res 37 (1): 43-7