进口报价“Thrombin 凝血酶”价格,高品质“Thrombin 凝血酶”价格

Sigma T4648 Thrombin from bovine plasma
lyophilized powder, 40-300 NIH units/mg protein (biuret)
Synonym: Factor IIa
CAS Number: 9002-04-4
Enzyme Commission (EC) Number: 3.4.21.5 ( BRENDA | IUBMB )
EC Number: 232-648-7
MDL number: MFCD00166053
Description
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Analysis Note Activity is expressed in NIH units obtained by direct comparison to a NIH Thrombin Reference Standard, Lot K.
The NIH assay procedure uses 0.2 mL of diluted plasma (1:1 with saline) as a substrate and 0.1 mL of thrombin sample (stabilized in a 1% buffered albumin solution) based on a modification of the method of Biggs. Only clotting times in the range of 15-25 seconds are used for determining thrombin concentrations.
Biochem/physiol Actions Serine protease that selectively cleaves Arg-Gly bonds in fibrinogen to form fibrin and fibrinopeptides A and B.
Other Notes View more information on thrombin at .
Preparation Note Activated with bovine brain thromboplastin.
Physical form Lyophilized powder containing sodium chloride and Tris-HCl, pH 7.0
Properties
form lyophilized powder
composition Protein, 40-60%
EQP level Premium
storage temp. −20°C 联系方式： 曹小姐