B4126

Bilirubin

≥98% (EmM/453 = 60), powder

• Synonim(y): Hemetoidyna, Pigment żółciowy
• Wzór empiryczny (zapis Hilla): C₃₃H₃₆N₄O₆
• Numer CAS: 635-65-4
• Masa cząsteczkowa: 584.66
• Beilstein: 74376
• Numer WE: 211-239-7
• Numer MDL: MFCD00005499
• Kod UNSPSC: 12352202
• Identyfikator substancji w PubChem: 24891751
• NACRES: NA.77

Właściwości

• opis: mixed isomers
• Poziom jakości: 300
• Próba: ≥98% (EmM/453 = 60)
• Formularz: powder
• rozpuszczalność: aqueous acid: soluble; aqueous base: soluble; benzene: soluble; chloroform: soluble
• temp. przechowywania: −20°C
• ciąg SMILES: CC1=C(C=C)\C(NC1=O)=C\c2[nH]c(Cc3[nH]c(\C=C4/NC(=O)C(C=C)=C4C)c(C)c3CCC(O)=O)c(CCC(O)=O)c2C
• InChI: 1S/C33H36N4O6/c1-7-20-19(6)32(42)37-27(20)14-25-18(5)23(10-12-31(40)41)29(35-25)15-28-22(9-11-30(38)39)17(4)24(34-28)13-26-16(3)21(8-2)33(43)36-26/h7-8,13-14,34-35H,1-2,9-12,15H2,3-6H3,(H,36,43)(H,37,42)(H,38,39)(H,40,41)/b26-13-,27-14-
• Klucz InChI: BPYKTIZUTYGOLE-IFADSCNNSA-N

Opis

Opis ogólny

Bilirubin, an end product of heme catabolism, forms from the breakdown of erythrocyte hemoglobin in the reticuloendothelial system. Heme oxygenase converts the heme of hemoglobin to biliverdin, and subsequently an NADPH-dependent biliverdin reductase converts biliverdin to bilirubin.

Bilirubin is commonly found bound to serum albumin, when circulating in blood, in its dianion form. Bilirubin is also associated with bile salts, in its monoanion form.

Disorders of hyperbilirubinemia may occur due to increased bilirubin synthesis or decreased bilirubin clearance.

Zastosowanie

Bilirubin has been used:

• in phantom preparation
• in in vitro experiments
• in the preparation of bilirubin solutions for infusion

Działania biochem./fizjol.

Bilirubin has been studied for its properties as an endogenous antioxidant, such as for its capabilities to scavenge reactive oxygen species (ROS) and to inhibit NADPH-oxidase activity. It appears to function as an efficient peroxyl radical scavenger, protecting membrane lipids from oxidation by these radicals. At nanomolar concentrations it has been shown to protect neurons from oxidative damage.

Well over 99% of total bilirubin is transported as a conjugate with albumin. Abnormally high levels of bilirubin can cause severe neurological damage, but mildly elevated levels are linked to protection from oxidative stress.

Inne uwagi

A major component of hemoglobin decomposition. The principal pigment of bile, and the yellow color in jaundice.

Przestroga

Protect from light.

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Informacja o środkach bezpieczeństwa

• Kod klasy składowania: 11 - Combustible Solids
• Klasa zagrożenia wodnego (WGK): WGK 2
• Temperatura zapłonu (°F): Not applicable
• Temperatura zapłonu (°C): Not applicable
• Środki ochrony indywidualnej: Eyeshields, Gloves, type N95 (US)