Appearance White crystal Assay 99%min Water 0.3% max sulphate 100ppm max Iron 5pm max

Appearance Pale yellow transparent liquid Assay (GC) 95.0%min

Appearance White or off white crystalline powder Identification IR Loss on drying 1.0% max Melting range 146℃~151℃ Heay metals 20ppm max Residue on ignition 0.2% max Assay 99% min

Appearance White or Light Yellow Powder Assay(HPLC) 99%min Melting Point 73.0-76.0°C Moisture 0.50% max Ash 0.50% max

Appearance Off-white to white crystalline powder Assay 99%min Melting point 56-58℃ Water 0.1% max