[ Structural formula ] :

[Appearance] :White crystalline powder

[Content] :99

[Loss on drying]: ≤1

[Melting point] :98-101°C

[Impurities]: ≤1

[Heavy Metal]: ≤20 PPM

[Ethanolamine]: ≤0.1%

[Minimal Residues]: ≤0.2

[Absorbance]: 315mm,150-158

[Package]: 25kg cardboard drum