Test

Specifications

Result

Assay by HPLC:

98.0% - 102.0%

99.76%

Appearance:

White CrystalsPowder

Complies

Clarity in Hexane

Clear and Yellow

Complies

Odor & taste:

Orderless and tasteless

Complies

Solubility

Freely soluble in ethanol isopropanol, slightly soluble in methanol, insoluble in water

Complies

Melting point

33-44°C

36°C

Water:

< 0.5%

0.11%

Residue on Ignition:

< 0.5%

Complies

Loss on drying %:

≤2.0%

1.43%

Heavy metals PPM:

<20ppm

Complies

Arsenic

< 0.5%

Complies

Other Related Substances ratio:

0.010

Complies

Identification :

Ethanol + Potassium Hydroxide :

Ethanol + Sodium Hydrosulfite:

Absorption in isooctane:

Absorbance Ratio A1/A2:

Blue

Yellow

325nm - 327nm

0.32 - 0.38

Complies

Complies

325nm

0.33

Conclusion:

Conform with specification