Oxtocin Pharmaceutical Polypeptide Uterine contraction drugs made in china CAS NO.50-56-6

Appearance

White or almost white powder.

Identification

A:HPLC :Retention time conforms to that of  the reference standard  

B. Amino acids: Asp: 0.90-1.10；Glu: 0.90-1.10

Pro: 0.90-1.10；Gly: 0.90-1.10

Leu: 0.90-1.10；Tyr: 0.7-1.05

Half-Cys: 1.4-2.1；Ile: 0.90-1.10

PH

3.0-6.0             

Related sub﹤stances(HPLC)

Impurity A≤1.0%

Impurity B≤1.0% 

Impurity C≤1.5% 

Other single impurity≤0.5% 

Total impurities≤5.0%                

Acetic acid (HPLC)

6.0%-10.0%                         

Water(KF)

≤5.0%                           

Bacterial endotoxins

﹤300 IU/mg  

AcN(GC)

≤0.041%

MeOH(GC)

≤0.3% 

Triethylamine(GC)

≤0.032%