Appearance: Creamy white crystalline powder
Assay: 98%min (HPLC)
UV Absorbance: 469~491 at 319nm

Solubility:
Soluble in water, freely soluble in methanol, ethanol and glacial acetic acid, slightly soluble in ether

Clarity of alcohol solution: 2% W/V in ethanol solution be clear

Melting Point:70~76℃
PH:6.0~8.0
Water content (KF): 4.5%~6.5%
Residue on ignition: 0.1% max
Heavy metals: 10ppm Max

Related substances (HPLC) :

2-Methyl-5-nitro-imidazole: 0.5% max
Any other individual impurity: 0.5% max
Total impurities:1.0% max
Residual solvent: Ethyl acitate 1000ppm Max

Comply with the standard of YBH09962005.

Package: 25kg/fibre drum