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E0504

Sigma-Aldrich

Ecarin from Echis carinatus venom

prothrombin activator

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CAS Number:
MDL number:
UNSPSC Code:
12352202
NACRES:
NA.61

biological source

Echis carinatus venom

Quality Level

packaging

vial of 45-55 units

storage temp.

−20°C

Application

Ecarin from Echis carinatus venom is the primary reagent in the ecarin clotting time (ECT) test, which is used to monitor anticoagulation and thrombin inhibition. It has been used in studies to test the effectiveness of medications for the treatment of venous and arterial thromboembolism.
Ecarin activity is the principal behind the Ecarin Clotting Time (ECT) assay, which is used to assess antithrombotic effect and thrombin inhibition.

Biochem/physiol Actions

Prothrombin activator

Unit Definition

One unit will activate prothrombin to produce one unit of amidolytic activity at pH 8.4 at 37 °C. One amidolytic unit will hydrolyze 1.0 μmole of N-p-tosyl-Gly-Pro-Arg-p-nitroanilide per min at pH 8.4 at 37 °C.

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Resp. Sens. 1 - Skin Sens. 1

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

动植物源性产品

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’.

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Elise S Eerenberg et al.
Circulation, 124(14), 1573-1579 (2011-09-09)
Rivaroxaban and dabigatran are new oral anticoagulants that specifically inhibit factor Xa and thrombin, respectively. Clinical studies on the prevention and treatment of venous and arterial thromboembolism show promising results. A major disadvantage of these anticoagulants is the absence of
Wei Zhou et al.
Stroke, 42(12), 3594-3599 (2011-10-15)
Dabigatran-etexilate (DE) recently has been approved for stroke prevention in atrial fibrillation. However, lack of effective antagonists represents a major concern in the event of intracerebral hemorrhage (ICH). The aims of the present study were to establish a murine model
Lambro A Johnson et al.
Analytical biochemistry, 608, 113907-113907 (2020-08-20)
Snake venom prothrombin activators such as Ecarin are readily assayed by continuous spectrophotometric monitoring of p-nitroaniline production in a one step assay containing prothrombin and a p-nitroanilide peptide substrate for thrombin. The coupled reactions result in accelerating p-nitroaniline (pNA) production
Kevin Dietrich et al.
Thrombosis research, 135(4), 630-635 (2015-02-27)
Age-related changes in the hemostatic system result in variation in response to anticoagulants and coagulation assays over childhood. This study used in vitro methods to determine i) optimum coagulation assays for dabigatran in children and ii) anticoagulant effect of dabigatran

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