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Merck
CN

14370

Bilirubin

purum, ≥95.0% (UV)

Synonym(s):

Bile pigment, Hemetoidin

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About This Item

Empirical Formula (Hill Notation):
C33H36N4O6
CAS Number:
Molecular Weight:
584.66
UNSPSC Code:
12352202
NACRES:
NA.25
PubChem Substance ID:
EC Number:
211-239-7
Beilstein/REAXYS Number:
74376
MDL number:
Assay:
≥95.0% (UV)
Form:
powder
Quality level:
Technical Service
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grade

purum

Quality Level

assay

≥95.0% (UV)

form

powder

ign. residue

≤0.5%

SMILES string

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-

InChI key

BPYKTIZUTYGOLE-IFADSCNNSA-N

General description

Bilirubin, a heme catabolism end-product is produced by the reduction of its metabolic precursor biliverdin by the action of enzyme biliverdin reductase.

Application

Bilirubin has been used as an interfering substance for in vitro interference and stability tests for myoglobin, creatine kinase-MB (CK-MB), and troponin-I. It has also been used as an interfering agent to test the effectiveness of the Heparin Red kit in the detection of various heparins.

Biochem/physiol Actions

Bilirubin is an active oxidative DNA cleaving agent as well as an effective antioxidant agent, a hydroxyl radical quencher. This bile pigment has both antioxidant and toxic properties. It is a natural inhibitor of vascular smooth muscle cell proliferation (VSMCs). It displays anti-inflammatory and anti-proliferative properties when used as a therapeutic agent in lung/vascular diseases. Serum bilirubin concentration slightly above the normal levels have shown a lesser incidence of heart disease. It is a potential therapeutic agent in heart transplantation and T-cell mediated immune disorders.
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.

Analysis Note

λmax. ∼453 nm, mol. absorption >56100 (chloroform)


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Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



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Stefan W Ryter et al.
American journal of respiratory cell and molecular biology, 36(2), 175-182 (2006-09-19)
Heme oxygenase (HO)-1, an inducible, low-molecular-weight stress protein, confers cellular and tissue protection in multiple models of injury and disease, including oxidative or inflammatory lung injury, ischemia/reperfusion (I/R) injuries, and vascular injury/disease. The tissue protection provided by HO-1 potentially relates
Yen-Wen Wu et al.
Acta Cardiologica Sinica, 36(6), 649-659 (2020-11-26)
The rapid diagnosis of acute myocardial infarction (AMI) is a clinical and operational priority in emergency departments. Serial serum levels of cardiac biomarkers play a crucial role in the evaluation of patients presenting with acute chest pain, so that an
Marlies Wallner et al.
Clinical science (London, England : 1979), 125(5), 257-264 (2013-04-10)
Recent epidemiological and clinical data show protection from CVD (cardiovascular disease), all-cause mortality and cancer in subjects with GS (Gilbert's syndrome), which is characterized by a mildly elevated blood bilirubin concentration. The established antioxidant effect of bilirubin, however, contributes only



Global Trade Item Number

SKUGTIN
662909-25G04061831822847
662909-5G04061831811551
14370-1G04061826750643
14370-250MG04061838735010
14370-5G04061838735027