specification
items | standards | ||
identification | infrared absorption | ||
specific rotation | -9.8°to -11.2° | ||
loss on drying | 0.3% max | ||
residue on iginition | 0.4% max | ||
chloride | 0.04% max | ||
sulfate | 0.04% max | ||
iron | 0.003% max | ||
heavy metals | 0.0015% max | ||
individual impurity | 0.5% max | ||
total impurity | 2.0% max | ||
organic volatile impurities | meet the requirements | ||
assay | 98.5% -101.5% |