5-Bromo-2-deoxyuridine:
Purity >98.0% (HPLC)
Water <2 % (K.F.)
Heavy metals (as Pb) <10 ppm
Specific rotation [a]20/D +30°～ +32°(c=1, 0.1 N NaOH)
Ratio of Absorbances 0.47 - 0.53 (A250/A260) (pH 2)
1.87 - 1.93 (A280/A260)
1.45 - 1.55 (A290/A260)
related substances (HPLC):
5-bromouracil: < 0.5%(HPLC)
each unknown impurity: < 0.2% (HPLC)
total impurities: < 2.0%(HPLC)
Residual solvents <0.2 % (GC)
<0.1 % (GC)
bacterial endotoxins test: < 0.1 EU/mg(LAL-test)
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