Bivalirudin

Details:

 Appearance: White or almost white powder 
Specific optical rotation :-100.0°~ -120.0° 
Identification  :   1.Biuret test: positive
                         2.HPLC: retention time of substance tested  complies with that of  the    reference s tandard.
                       3.IR: intensity of infrared absorption detected
                        complies with that of the reference standard.
Clarity and color of solution: 
                                           Clear,colorless,solution(If any color shows in
                                           the test solution,it should be no thicker than
                                           the yellow standard colorimetric solution)
PH :2.0~4.0 
Absorbance :Absorbance of substance detected at a
                    wavelength of 280nm is no more than 0.35. Conforms 

Amino acids: Asp: 1.8~2.2
                    Glu: 3.6~4.4
                    Gly: 4.5~5.5
                    Arg: 0.9~1.1
                    Pro: 2.7~3.3
                    Tyr: 0.8~1.2
                     Ile: 0.9~1.1
                    Leu: 0.9~1.1
                    Phe: 1.8~2.2
Related peptides(HPLC): Single impurity: ≤1.0%

                                        Total impurity:≤2.0%
Trifluoroacetic acid:  5.0%~12.0%

Water(KF): ≤ 6.0% 
Bacterial endotoxins :≥ 1.0EU/mg 
N,N-Dimethylformamide :≤ 0.088% 
Acetonitrile :≤ 0.041% 
Methanol :≤ 0.3% 
Assay:97.0%~103.0% (anhydrous and trifluoroacetic
             acid free substance,C98H138N24O23)) 100.8%
Storage: Store protected from light at a temperature between2℃~8℃。