TEST

SPECIFICTIONS

Description

A white or almost white,amorphous powder;hygroscopic

Identification

Infrared absorption spectrum

Specific optical rotation

+25.0°~+30.0°(C=1,in Ethanol)

Water content

≤3.0%

15-epimer

≤0.5%

5,6-trans isomer

≤2.0%

(-)-enantiomer

≤2.0%

Other max single impurity

≤0.5%

Impurities total

≤2.5%

  Residue solvents

Methanol≤0.3%

Toluene≤0.089%

Tetrahydrofuran≤0.072%

Ethyl acetate≤0.5%

Dichloromethane≤0.06%

Purity (HPLC)

≥98.5%

Conclusion

Complies with In-house standards.