Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

UC213

Sigma-Aldrich

(R)-(+)-Warfarin

≥97% (HPLC)

Synonym(s):

R-(+)-3-Acetonybenzyl)-4-hydroxycoumarin, R-(+)-4-Hydroxy-3-(3-oxo-1-phenybutyl)-2H-1-benzopyran-2-one

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C19H16O4
CAS Number:
5543-58-8
Molecular Weight:
308.33
EC Number:
226-908-9
MDL number:
MFCD00272376
UNSPSC Code:
12161501
PubChem Substance ID:
24724649

Assay

≥97% (HPLC)

form

solid

color

white to pale yellow

mp

≥170 °C

solubility

DMF: soluble
DMSO: soluble
ethanol: soluble

storage temp.

2-8°C

SMILES string

[H][C@@](CC(C)=O)(c1ccccc1)C2=C(O)c3ccccc3OC2=O

InChI

1S/C19H16O4/c1-12(20)11-15(13-7-3-2-4-8-13)17-18(21)14-9-5-6-10-16(14)23-19(17)22/h2-10,15,21H,11H2,1H3/t15-/m1/s1

InChI key

PJVWKTKQMONHTI-OAHLLOKOSA-N

Gene Information

human ... CYP2C9(1559)

General description

The chiral carbon at position 9 produces two enantiomers, R- and S-warfarin. Commercially available warfarin (Coumadin or Jantoven) is a racemic mixture of S- and R-enantiomers.

Application

(R)-(+)-warfarin has been used to investigate whether enantiomers of warfarin stereoselectively interact with pregnane X nuclear receptor (PXR) to upregulate main drug/xenobiotic-metabolizing enzymes cytochrome P450 3A4 (CYP3A4) and cytochrome P450 2C9 (CYP2C9). It has also been used in HepG2 cells to study protein profiles

Biochem/physiol Actions

Warfarin acts as a vitamin K antagonist. It is widely used to treat thromboembolic disorders. (R)-warfarin interacts with pregnane X receptor (PXR) and induces cytochrome P450 3A4 (CYP3A4) and CYP2C9 mRNAs expression in primary human hepatocyte cultures.
CYP1A2/3A4 substrate; anticoagulant.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Preparation Note

(+)-Warfarin is soluble in DMF, DMSO and ethanol.

Signal Word

Danger

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 1 Inhalation - Acute Tox. 2 Oral - Aquatic Chronic 2 - Repr. 1A - STOT RE 1

Target Organs

Blood

Storage Class Code

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Metabolic profiling of HepG2 cells incubated with S(-) and R(+) enantiomers of anti-coagulating drug warfarin
Bai, J, et al.
Metabolomics, 7(3), 353-362 (2011)
A Rulcova et al.
Journal of thrombosis and haemostasis : JTH, 8(12), 2708-2717 (2010-08-26)
Warfarin, an antagonist of vitamin K, is an oral coumarin anticoagulant widely used to control and prevent thromboembolic disorders. Warfarin is clinically available as a racemic mixture of R- and S-warfarin. The S-enantiomer has three to five times greater anticoagulation
Michelle J Yoo et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 877(11-12), 1149-1154 (2009-03-31)
Binding by the drug imipramine to the protein human serum albumin (HSA) was studied by using high-performance affinity chromatography. The association equilibrium constants and number of binding sites for imipramine with HSA were first estimated by utilizing frontal analysis. Imipramine
Jing Bai et al.
Proteomics. Clinical applications, 4(10-11), 808-815 (2010-12-08)
warfarin is a commonly prescribed oral anticoagulant with narrow therapeutic index. It interferes with the vitamin K cycle to achieve anti-coagulating effects. Warfarin has two enantiomers, S(-) and R(+) and undergoes stereoselective metabolism, with the S(-) enantiomer being more effective.
Konstantin Doronin et al.
Human gene therapy, 20(9), 975-988 (2009-05-28)
Oncolytic adenoviruses are anticancer agents that replicate within tumors and spread to uninfected tumor cells, amplifying the anticancer effect of initial transduction. We tested whether coating the viral particle with polyethylene glycol (PEG) could reduce transduction of hepatocytes and hepatotoxicity
View All Related Papers

Protocols

Chiral and Achiral LC-MS Analysis of Warfarin™ in Plasma Samples

his study demonstrates the analysis of Warfarin in plasma samples utilizing chiral and achiral (reversed-phase) LC-MS and effective sample prep to remove endogenous phospholipids

Chromatograms

application for HPLCapplication for SFCapplication for HPLCapplication for HPLCShow More

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service