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E0504

Sigma-Aldrich

Ecarin from Echis carinatus venom

prothrombin activator

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CAS Number:
55466-26-7
MDL number:
MFCD00130991
NACRES:
NA.61

biological source

Echis carinatus venom

Quality Level

200

packaging

vial of 45-55 units

storage temp.

−20°C

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packaging

vial of 45-55 units

packaging

-

packaging

-

packaging

-

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

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
GHS08

Signal Word

Danger

Hazard Statements

H317 - H334

Precautionary Statements

P261 - P280 - P342 + P311

Hazard Classifications

Resp. Sens. 1 - Skin Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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
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
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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