Item

Inspection Standard

Appearance

Yellow powder

Loss on drying

5~8%

Purity by HPLC

≥97.0%

Reidual solvents

Methanol≤3000ppm 

Isopropanol≤2000ppm

Acetone≤3000ppm

C-4

≤1.0%

Other impurity

≤1.0%

Total impurity

≤3.0%

Heavy metals

0.002%

Residue on ignition

≤0.5%