Pitavastatin Calcium

Specifications:
1) Character: a white or almost white powder
2) Identification: positive reaction
3) Specific optical rotation: +14 ~ +22^o
4) PH: 5.6 - 7.2
5) Related impurities:
    a) Total impurity: ≤1.0%
    b) Individual impurity: ≤0.2%
    c) Loss on drying: ≤5.0%
    d) Ca: 3.5 - 4.5%
    e) Heavy metals (ug/g): ≤20
    f) Assay (on unhydrous basis): ≥98.5%