Items of Test

Standard

Result of Test

Appearance

White to pale yellow crystal or powder

Meets

Oder

Similar taste of vanillia

Meets

Melting point

81-83°C

81.3°C

Solubility in ethanol

1g compeletely soluble into 2ml95% ethanol makes transparent solution

Meets

Loss on drying

≤0.5%

0.06%

As content

≤0.0003%

less than0.0003%

Heavy metals(as Pb)

≤0.001%

less than0.001%

Assay

97.0-101.0%

99.97%

Conclusion

It conforms to BP2010